Question

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7× +23 - × = 2× +20

Answer 1

7x + 23 - x = 2x + 20

7x - x + 23 = 2x + 20

6x + 23 = 2x + 20

6x - 2x = 20 - 23

4x = - 3

x = - 3/4

Resposta: x = -3 /4

Answer 2

7x + 23 -x = 2x +20
6x -2x = 20 -23
4x = -3
x= -3/4