A linear equation of one variable is compiled so that the solution of the equation is 1, and the solution of the equation must go through the past denominator process

A linear equation of one variable is compiled so that the solution of the equation is 1, and the solution of the equation must go through the past denominator process

1／x＝1
This is simpler... Hehe
1/(x+1)=1/2
2=x+1
X=1
It's the simplest
The textbook of linear equation of one variable 192 pages
A bicycle team trained, all the members moved at a speed of 35 km / h. Suddenly, the 1 team moved forward at 45 km / h, and after 10 km, the car turned back to the front of the car, still returning at 45 km / h, until long time with the other players, 1 members from the team left to join the players.
We just talked about it today
Solution: after X hours
35x+45x=10*2
x=0.25
Solution: let x hours pass
Then 35x + 45x = 10 * 2
So x = 0.25
Suppose: the time taken by the accelerating person to join the team after turning around from the turning point is X
10-35*10/45=(45+35)x
X = 1 / 36 (hours)
Total time: 1 / 36 + 10 / 45 = 1 / 4 (hours)
What is the basis for solving the deformation of "merging similar terms" in the equation, the basis for "shifting terms" and the basis for converting coefficient to 1?
Note that it's a blank question
Basis of merging similar items: inverse operation of multiplication allocation rate
Transfer basis: equality property 1 (if the same number or formula is added or subtracted from both sides of the equation, the equal sign still holds)
The coefficient is changed to 1 according to the property of the equation 2 (if both sides of the equation are multiplied by a non-zero number or formula, the equal sign will still hold)
Solve the following equation (2) x ^ 2-x-7 / 4 = 0 (3) 3x ^ 2 + 6x-4 = 0; (4) 4x ^ 2-6x-3 = 0
)x^2-x-7/4=0∵a=1 b=-1 c=-7／4Δ=（-1）²-4×（-7／4）×1=8＞0∴x1=（1+2√2）／2×1=（1+2√2）／2,x2=（1-2√2）／2×1=（1-2√2）／2,(3)3x^2+6x-4=0∵a=3 b=6 c=-4Δ=6²-4×3×（-4）=84＞0∴x1=（...
x²-x-7/4=0
4x²-4x-7=0
x=(4±8√2)8=1/2±√2
3x²+6x-4=0
x=(-6±2√21)/6=-1±√21/3
4x²-6x-3=0
x=(6±2√21)/8=(3±√21)/4
(1) One in two plus two root sign 2, (2) - one plus three root sign 21, (3) three in four plus four root sign 21
What about the equation 2x + 5 = 3x-3
2X - 3X = -3-5
-X = -8
X = 8
2X - 3X = -3-5
-X = -8
X = 8
Please accept!!!
2X &; 3x equals 5 &; 3
5x equals two
X equals 0.4
2X - 3X = -3-5
-X = -8
X = 8
Find the solution set 1, 1 / 4x + 2 ≥ - 6 and 4 / 3 2, - 0.5x ≤ 1.5x-4 3, 5x-7 ＞ - 29 + 2x 4, 1 / 3x-0.2 ＜ x-3 / 5
5、0.4x-11＞2.4x-21
6、3/8x＋1≤5/8x-3/4
It's better to have a complete list. Thank you very much
1. Simplify to 1 / 4x > = - 22 / 3-2, get 1 / 4x > = - 28 / 3, so x > = - 112 / 3; (greater than or equal to sign with > =)
2. It is reduced to - 0.5x-1.5x - 29 + 7 to get 3x > - 22, so x > - 22 / 3;
4. Simplify to 1 / 3x-x2.4x-0.4x, get 10 > 2x, so X5 / 8x-3 / 8x get 7 / 4 > 1 / 4x, so X
Solve the following equation: (1) (3x + 2) (2x-3) = - 5 (2) (3x + 5) (3x-5) + 6x = - 26
(1)(3x＋2)(2x－3)＝－5 (2)(3x＋5)(3x－5)＋6x＝－26
3x(2x-3)+2(2x-3)= -5 (3x)²-25+6x= -26
6x²-9x+4x-6= -5 9x²+6x+1=0
6x²-5x-1=0 (3x+1)²=0
(x-1)(6x+1)=0 x= -1/3
x1=1,x2= -1/6
Solve the following inequality, {3x + 2 ＞ 0, 5x-4 ≥ 1, X / 3-1 ＜ 0
3x+2＞0
3x＞-2
x＞-2/3
5x-4≥15x≥5
x≥1
x/3-1＜0x/3＜1
x＜3
If you don't understand, I wish you a happy study!
The last person's steps to solve the problem are correct, but the difference is that the solution set of this inequality {x | 1
Solve the equation of 1-3 / 3 3-2x = 2 / 3x-1,
Multiply both sides of the equation by 6 to get the following result:
6-2(3-2x)=3(3x-1)
6-6+4x=9x-3
9x-4x=3
5x=3
x=3/5
The solution of equation 2x + 4x = 3x-2010 is
6x=3x-2010
3x=-2010
x=-670
X = - 670, please accept. Thank you
Pay 670