Question

Resolva as equações. A) 2(x+5)=x+8
B) 6x+24=x+36
C) x(10+2)=4(x-1)
D) 4(x+1)=3(x+2)

Answer 1

A) 2x+10=x+8

2x-x=8-10

x=-2

B)6x-x=36-24

5x=12

x=12/5

C)10x+2x=4x-4

10x+2x-4x= -4

8x= -4

x= -4/8

D)4x+4= 3x+6

4x-3x= 6-4

x=2

Answer 2

A) 2(x+5) = x+8
2x + 10 = x + 8
2x - x = 8 - 10
x = -2

B) 6x + 24 = x + 36
6x - x = 36 - 24
5x = 12
x = 12/5

C) x(10 + 2) = 4(x - 1)
12x = 4x - 4
12x - 4x = -4
8x = -4
x = -4/8
x = -1/2

D) 4(x + 1) = 3(x +2)
4x + 4 = 3x + 6
4x - 3x = 6 - 4
x = 2