Question

RESOLVER
- 6 x = - 24 + 2 x

3 x - 10 = 18 - x

x + 3 . ( x - 1 ) - 7 = 6

Answer 1

1°: -6x = -24 + 2x
24 = 2x + 6x
24 = 8x
x = 24/8
x = 3
2°: 3x - 10 = 18 - x
3x + x = 18 + 10
4x = 28
x = 28/4
x = 7
3°: x + 3 • (x - 1) - 7 = 6
x + 3x - 3 - 7 = 6
x + 3x = 6 + 3 + 7
4x = 16
x = 16/4
x = 4