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There are 272 people working in Division A and 196 people working in division B. if the number of people working in Division B is 1 / 3 of the number of people working in Division A, then people should be transferred from Division B to division a
(272 + 196) / (1 + 3) = 117
196-117 = 79
A: 79 people should be transferred from B to a
The formula of mathematics matching, allocation, billing and other problems in grade one of junior high school needs to be concise and comprehensive
If the equation x ^ m-2-3 = 0 is a linear equation with one variable, then M=____
1
When m takes what value, the equation (M-3) x | m | - 1 + (M + 3) x-3 = 0 is a linear equation with one variable
Is | m | - 1 the index of X
If it is
Then | m | - 1 = 1
m-3≠0
m+3≠0
m-3+m+3≠0
∴m=2,-2
3-2＜x+2 5x+5≥2x-7
Can it be written as 2 ＞ x ≥ = - 4, or - 4 ≤ x ＜ 2
In this case, we usually use the less than sign
So it's - 1
3-2 less than x + 2, 5x + 5 more than 2x-7
Is it possible to write 2 greater than x greater than or equal to - 4, or - 4 less than or equal to x less than 2
3-2< x+2
1-1
5x+5>2x-7
5x-2x >-12
3x>-12
x>-4
7-2x=3-5x
Do you want to solve the equation?
Move the term, 5x-2x = 3-7
3x=-4
x=-3/4
X + 5 / 8 x = 39
5x / (x + 8) = 39 x on denominator
5x=39x+312
34x=312
x=156/17
It is proved that x = 156 / 17 is the solution of the original equation
X + 5x / 8 = 39 x not on denominator
8x+5x=312
13x=312
x=24
How much does 5x & # 178; + x = 18 - equal? I can't remember how to calculate for a while!
（5x-9）(x+2)=0 x=9/5,x=-2
Given y = x ^ 2 + 5x-6, when x is what number, the value of Y is equal to zero? When x is what number, the value of y = 18
The value of Y is equal to 0
∴x²+5x-6=0
(x+6)(x-1)=0
∴x=-6 x=1
According to the meaning of the title
x²+5x-6=18
x²+5x-24=0
(x+8)(x-3)=0
Ψ x = - 8 or x = 3
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