Question

A) 4x+8= 20+2x
b) 3.(x+2)= 12

resolva as expressões
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Answer 1

Letra a

4x+8= 20+2x

4x-2x= 20-8

2x= 12

x=12/2

x= 6

Letra b

3.(x+2)= 12

3x+6= 12

3x= 12-6

3x= 6

x= 6/3

x= 2

Answer 2

A) 4x-2x+8=20

4x-2=20-8

2x=20-8

2x=12

X=6

B)X+2=4

X=4-2

X=2