Solve equation 5.6 + 80% x = 7.2 1 / 4 x + 25% x = 1 / 2

Solve equation 5.6 + 80% x = 7.2 1 / 4 x + 25% x = 1 / 2

5.6+80%x=7.2
0.8x=7.2-5.6
0.8x=1.6
x=1.6÷0.8
x=2
1 / 4 x + 25% x = 1 / 2
0.5x=0.5
x=0.5÷0.5
x=1

X + 5 / 8, x = 39, how many meters is 1 / 2 more than 80 meters, 6 / 5 = 18, what = 20, what = 25, what = 40

（1）
x+5x/8=39
13x/8=39
x=39*8/13
x=24
（2）
One second more than 80 meters is:
80 + 80 * 1 / 2 = 80 + 40 = 120 (m)
（3）
6 / 5 = 18:15 = 24:20 = 30 / 25 = 48 △ 40

The solution equation: 5 / 6 △ x = 25 / 6, 5 / 8 = 4 / 15

5/6÷x = 25/6
x = 5/6÷25/6
x = 1/5
x÷ 5/8 = 4/15
x= 4/15×5/8
x = 1/6

Solving the equation: 1 / 4 X-10 = 1 / 8 X-6

1/(X-4)+1/(X-10)=1/(X-8)+1/(X-6)
(X-4)(X-6)(X-8)(X-10)
(X-6)(X-8)(X-10)+(X-4)(X-6)(X-8)=(X-4)(X-6)(X-10)+(X-4)(X-8)(X-10)
(X-6)(X-8)(X-10+X-4)=(X-4)(X-10)(X-6+X-8)
(X-6)(X-8)(2X-14)=(X-4)(X-10)(2X-14)
(X-6)(X-8)=(X-4)(X-10)
X²-14X+48=X²-14X+40
8=0
unsolvable

3 × 13.3 + x = 98.6 equation

3×13.3+x=98.6
39.9+x=98.6
x=98.6-39.9
x=58.7

How to solve the equation of 8x + 6y + 6 (18-x-y) = 112

8x+6y+6(18-x-y)=112
8x+6y+108-6x-6y=112
2x=4
x=2
Y is any real number

How to solve the equation x + y + Z = 18 8x + 6y + 6Z = 112 2Y + Z = 22?

Formula 1: x + y + Z = 18
Formula 2: 8x + 6y + 6Z = 112
Formula 3: 2Y + Z = 22
Formula 2-1 * 6: x = 2
Substitute:
y+z=16
2y+z=22
The solution is as follows
y=6
z=10

+How to solve the equation y + Z = 188x + 6y + 6Z = 1122y + Z = 22?

{x+y+z=18 (1)
{8x+6y+6z=112 (2)
{2y+z=22 (3)
(2) - (1) × 6
8x-6x=112-18×6
2x=4
x=2
Substituting x = 2 into (2) yields
6y+6z=112-2*8
6y+6z=96
y+z=16 (4)
(3) - (4) get
y=6
Substituting y = 6 into 4 yields
z=10
So it's a good solution
{x=2
{y=6
{z=10

20x / 25 (x + 30) = 1 / 2 (solve this equation)

40x = 25x + 25 * 30
15x = 750
x = 50

Who can help me solve this equation (0.7 + x) (160-20x) = 50

（0.7+x）（160-20x）=50
0.7*160-14x+160x-20x^2=50
112+146x-20x^2=50
20x^2-146x-62=0
10x^2-73-31=0
Let's find out for ourselves