Question

5(3-x)-4x=18 meajudem

Answer 1

5(3 - x) - 4x = 18
15 - 5x - 4x = 18
- 5x - 4x = 18 - 15
- 9x = 3 multiplicamos por ( -1)
9x = - 3
x = - 3/9
x = - 1/3

Answer 2

Oi Alexandre!

$5.(3-x)-4x=18$

$15-5x-4x=18$

$-9x=18-15$

$-9x=3$

$x=3/9$

$x=( \frac{3:3}{9:3} )$

$x=- \frac{1}{3}$

Bons estudos!!!