Question

Qual o resultado das equações

a)6x+8=12-2x

b)12x-81=6x+1

c)8x+6=18x-8

d)4x-8=12x+6​

Answer 1

a)6×+8=12-2×

6×+2×=12-8

8×=4

×=4/8 :(4)

×=1/2

b)12×-81=6×+1

12×-6×=81+1

6×=82

×=82/6 :(2)

×=41/3

c)8×+6=18×-8

8×-18×=-8-6

-10×=-14

×=-14/-10 :(2)

×=7/5

d)4×-8=12×+6

4×-12×=6+8

-8×=14

×=14/-8 :(2)

×=-7/4