Question

me ajudem pfvrzinho ;


4x + 2 = 38


9x = 6x + 12

5x – 1 = 3x + 11


2x + 8 = x + 13
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Answer 1

Resposta:

4x+2=38

4x=38-2

x=36/4

x=9

9x=6x+12

9x-6x=12

3x=12

x=12/3

x=4

5x-1=3x+11

5x-3x=11+1

2x=12

x=12/2

x=6

2x+8=x+13

2x-x=13-8

x=5