Question

equação 1 grau


3(x-2)=4(3-x)


7 (x-2)=5(x+3)


5x-3(x+2)=15


2(3-x)=3(x-4)+15


me ajuda??5-2x=x

Answer 1

3(x-2) = 4(3-x)
3x - 6 = 12 - 4x
3x + 4x = 12 + 6
7x = 18
x = 18/7

7(x-2) = 5(x+3)
7x - 14 = 5x + 15
7x - 5x = 15 + 14
2x = 29
x = 29/2

5x- 3(x+2) = 15
5x - 3x - 6 = 15
2x = 15 + 6
2x = 21
x = 21/2

2(3-x) = 3(x-4)+15
6 - 2x = 3x - 12 + 15
-2x - 3x = -12 + 15 - 6
-5x = -3
5x = 3
x = 3/5