Question

Simplifique e resolva as questões



A) 4 x -3 - x + 8 = 11

B) 6 . (X - 2) = 12

C) 9 + 2 . ( 5 x- 4 ) = 21

D) 10 x + 4 . ( 3 - 2 x ) -6 =8

E ) 3 . ( 5 + 3 x ) + 5 . ( - X - 1 ) = 22

F) 2 . ( 9 x - 4 ) - 7 + ( 6 - 5 x ).3 = 18

Answer 1

A) 4x-3-x+8=11
4x-x=11+3-8
3x=6
x=6/3
x=2

B) 6(x-2)=12
6x-12=12
6x=12+12
6x=24
x=24/6
x=4

C) 9+2(5x-4)=21
9+10x-8=21
10x=21-9+8
10x=20
x=20/10
x=2

D) 10x+4(3-2x)-6=8
10x+12-8x-6=8
10x-8x=8-12+6
2x=2
x=2/2
x=1

E) 3(5+3x)+5(-x-1)=22
15+9x-5x-5=22
9x-5x=22-15+5
4x=12
x=12/4
x=3

F) 2(9x-4)-7+(6-5x)3=18
18x-8-1-15x=18
18x-15x=18+8+1
3x=27
x=27/3
x=9