Question

3 (5-x ) -3 (1 -2x) = 42

Answer 1

Resposta:

3 (5 - x ) - 3 (1 - 2x) = 42

3 . 5 + 3 . x - 3 . 1 + 3 . 2x = 42

15 + 3x - 3 + 6x = 42

3x + 6x = 42 - 15 + 3

9x = 40

x = 40÷9

x ≅ 4,44