Question

A-3(y+3)+5y=25 B-18(x+2)=4(x+6) C- -8(x+3)=40 D- 12x-14(1-x)-2(10x4)=0
E- -5(-x+4)=20

Answer 1

A-3(y+3)+5y=25
3y +9 + 5y =25
8y = 25 -9
8y = 16
y= 16/8
y = 2

B-18(x+2)=4(x+6)
18x + 36 = 4x + 24
18x -4x = 24 -36
14x = -12
x = -12/14 simplifica por 2 =-6/7


C- -8(x+3)=40
-8x +24 =40
24 -40 = 8x 
-16 = 8x
x = -16/8
x =-2

D- 12x-14(1-x)-2(10x4)=0   
12x -14 +14x -80 =0
12x +14x =80+14
26x = 94
x = 94/26



E- -5(-x+4)=20
+5x -20 =20
5x = 20 +20
5x = 40
x = 40 /5
x = 8