Question

a) 10+1(x-2)=5-1(x+4)
b) 2x+1(5-x)=3-3x+6
c) 4(x-2)-2(x+1)=4
d) 10(x+1)-6=2(x-3)-10
e) 2(x-2)+3(2x+2)=-5

Answer 1

Oi...

a) 10 + 1(x - 2) = 5 - 1(x + 4)

10 + x - 2 = 5 - x - 4

x + x = 5 - 4 + 2 - 10

2x = - 7

x = - 7/2

b) 2x + 1(5 - x) = 3 - 3x + 6

2x + 5 - x = 3 - 3x + 6

2x - x + 3x = 6 + 3 - 5

4x = 4

x = 4/4

x = 1

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

4x - 8 -2x - 2 = 4

4x - 2x = 4 + 2 + 8

2x = 14

x = 14/2

x = 7

d) 10(x + 1) - 6 = 2(x - 3) - 10

10x + 10 - 6 = 2x - 6 - 10

10x -2x = - 6 - 10 + 6 - 10

8x = - 20

x = - 20/8 ÷ 4

x = - 5/2

e) 2(x - 2) + 3(2x + 2) = - 5

2x - 4 + 6x + 6 = - 5

2x + 6x = - 5 - 6 + 4

8x = - 7

x = -7/8

Espero ter ajudado.