Question

a) 5x - 18 + x = 2x + 38
b) 25 - 3x + 12 = - 2x - 13
c) 2x - 21 + x = 12 - 3x + 23​

Answer 1

Explicação passo-a-passo:

a) 6x -18= 2x +38

6x - 2x = 38 +18

4x = 56

x= 56/4

x= 14

b) - 3x +37 = -2x -13

-3x +2x = - 13 - 37

- 1x = -50

x= -50/-1

x= +50

c) 3x - 21= -3x + 35

3x +3x = 35 +21

6x = 56

x= 56/6