Question

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

Olá Nathally!

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

b)6x -12 = 12
6x = 12 +12
x = 24/6
x = 4

c)9 +10x -8 =21
10x = 21 +8 -9
x = 20/10
x = 2

d)10x +12 -8x -6x =8
10x -8x -6x = 8 -12
4x = 4
x =4/4
x = 1

e)15 +9x -5x -5 =22
9x -5x = 22 -15 +5
4x = 12
x = 12/4
x = 3

f)18x -8 -42 +35.3 =18
18x =18 +8 +42 + 105
x = 173/18
x = 9.611