Question

a) 2x+3x=15
b) 8x-2=30
c)-6x-5=-35
d)
15x+10=40
+3
e) - 9x = -81

Answer 1

Resposta:

Explicação passo a passo:

a) 2x+3x=15 --> 5x = 15 --> x = 15/5 --> x = 3

b) 8x-2=30 --> 8x = 30 + 2 --> x = 32/8 --> x = 4

c) -6x-5=-35 --> -6x = -35 + 5 --> -6x = -30 --> x = -30/+6 --> x = -5

d) 15x+10= 40 +3

e) -9x = -81 --> x = -81/-9 --> x = +9