Question

Resolva as equações
L) 4(x + 10) - 2(x - 5) = 0
m) 3(2x + 3) - 4(x - 1) = 3
n) 7(x - 1) - 2(x - 5) = x - 5
0) 2(3-X) = 3(x - 4) + 15
p) 3(5 - x)-3(1-2x) = 42
g) (4x + 6)-2x = (x - 6) + 10 + 14
r) (x-3) - (x + 2) + 2(x - 1) - 5 = 0
s) 3x - 2(4x - 3) = 2 - 3(x - 1)
t) 3(x - 1)-(x - 3) + 5(x - 2) = 18
u) 5(x - 3) - 4(x + 2) = 2 + 3(1 - 2x)

Answer 1

Resposta:

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

     4x + 40 -2x + 10 = 0

      4x - 2x = 0 - 10 - 40

        2x = -50

            x = -50:2

                  x = -25

Answer 2

Explicação passo-a-passo:

7x - 7 - 2x - 10=x - 5

5x - 17=x - 5

5x - 17 - x + 5=0

4x - 12=0

x=12/4

x=3