Question

Resolva as equações:

a) 5x - 25 + x = - 5x + 75 +

b) 3x + 5 = - 2x - 40

Answer 1

a) 5x - 25 + x = - 5x + 75
5x + 5x + x = 25 + 75
11x = 100
x = 100/11
x = 9,09 (aproximadamente)

b) 3x + 5 = - 2x - 40
3x + 2x = - 5 - 40
5x = - 45
x = -45/5
x = - 9