Question

22. Simplifique e resolva as equações.
a) 4x - 3 - X + 8 = 11
b) 6. (x - 2) = 12
c) 9 + 2. (5x - 4) = 21
d) 10x + 4. (3 - 2x) - 6 = 8
e) 3. (5 + 3x) + 5.(- x - 1) = 22
f) 2. (9x - 4) - 7+ (6 - 5x). 3 = 18​

Answer 1

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

4x-x=11+3-8

3x=6

x=6/3

x=2

B) 6x-12=12

6x=12+12

6x=24

x=24/6

x=4

C) 9+10x-8=21

10x=21-9+8

10x=20

x=20/10

x=2

D)10x+12-8x-6=8

10x-8x=8+6-12

2x=2

x=2/2

x=1

E)15+9x-5x-5=22

9x-5x=22-15+5

4x=12

x=12/4

x=3

F)18x-8-7+18-15x=18

18x-15x=18-18+8+7

3x=15

x=15/3

x=5