Question

Resolva as equações :
A) 2 (x+6)=-3 (x+4)
B) 12(x-3)=6 (x+4)
C)13 (-x+1)=7 (x-1)

Answer 1

Explicação passo-a-passo:

A)2(x+6)= -3(x+4)

2x+12= -3x-12

2x+3x= -12-12

5x= -24

x= -24/5

B)12(x-3)=6(x+4)

12x-36=6x+24

12x-6x=24+36

6x=60

x=60/6

x=10

C)13(-x+1)=7(x-1)

-13x+13=7x-7

-13x-7x= -7-13

-20x= -20

x= -20/ -20

x= 1