Question

resolva as equações 4(x+10)-2(x-5)=0. 3,5x +8=3(x+7)​

Answer 1

Resposta:

4(x+10) -2(x-5) = 0

4x + 40 -2x + 10 = 0

4x -2x + 40 + 10 = 0

2x + 50 = 0

2x = -50

x = -50/2

x = -25

3,5x + 8 = 3(x+7)

3,5x + 8 = 3x + 21

3,5x - 3x = 21 - 8

0,5x = 13

x = 13/0,5

x = 26