Question

a)10x -50=-100
b)x+5+x=11
c)4 (x+3)=20
d)x+2 (x-1)=4


​

Answer 1

Olá....

a) 10x - 50 = - 100

10x = - 100 + 50

10x = - 50

x = - 50/10

x = - 5

b) x + 5 + x = 11

2x = 11 - 5

2x = 6

x = 6/2

x = 3

c) 4(x + 3) = 20

4x + 12 = 20

4x = 20 - 12

4x = 8

x = 8/4

x = 2

d) x + 2(x - 1) = 4

x + 2x - 2 = 4

3x = 4 + 2

3x = 6

x = 6/3

x = 2

Espero ter ajudado.