Question

resolva as equações:

A)2x+3x+9=8(6-x)
B)4(x+10)-2(x-5)=​

Answer 1

Resposta:

a)2×+3×+9=8(6-×)

2×+3×+9=48-8×

2×+3×+8×=48-9

13×=39

×=39/13

×=3

b)4(×+10)-2(×-5)=

4×+40-2×+10=

4×-2×=-40-10

2×=-50

×=50/2

×=25