Question

a) 9x = 6x + 12
b) 5x - 1 = 3x + 11
c) 2x + 8 = x + 13
d) 3.(m+2)-5.(m+3)=1
e) 7 (2x-3) + 2 (x+1) -5 (X-9) = 3x+10

Answer 1

Resposta:

a) x=4 b)x=6 c) x=5 d) x=-5 e) x=-2

Explicação passo a passo:

a) 3x=12

x=12/3=4

b) 2x=12

x=12/2=6

c) x= 13-8=5

d) 3m +6 -5m -15=1

-2m-9=1

-2m=10

m=-5

e) 14x-21+2x+2-5x+45=3x +10

11x+26=3x +10

8x=-16

x=-2