Question

24) 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

me ajudem por favor!!!!!

Answer 1

A-

4X - 3 - X +8=11
4X-X=11-8+3
3X=6
X=6/3
X=2

B- 

6(X-2)=12
6X-12=12
6X=12+12
X= 24/6
X=4

C-

9+2(5X-4)=21
9+10X-8=21
10XX=21+8-9
10X=20
X=20/10
X=2

D-

10X+4(3-2X)-6=8
10X+12-8X-6=8
10X-8X=8+6-12
2X=14-12
X=2/2
X=1

E-

3(5+3X)+5(-X-1)=22
15+9X-5X-5=22
4X=22+5-15
4X=27-15
X=12/4
X=3

F-

2(9X-4) -7 + (6-5X) 3 = 18

18X - 8 - 7+18-15X=18

18X-15X=18+8+7-18
3X=15
X=15/3
X=5