Question

resolva corretamente 7x + x + x = - 3x- 12
B) 2x + x + x = - 5x - 12 por favor me ajudemmmm

Answer 1

Resposta:

a) 7X + X + X = - 3X - 12

9X + 3X = - 12

12X = - 12

X = - 12 ÷ 12

X = - 1

B) 2X + X + X = -5X -12

4X + 5X = -12

9X = -12

X = -12 ÷ 9