Answer:
a.) x=6 b.) y=-7 c.) a=0.25
Explanation:
a.) 2(3x+2)=2x+28
6x+4=2x+28
subtract 4 on both sides
6x=2x+24
subtract 2x on both sides
4x=24
divide both sides by 4
x=6
b.) 5y+13=-43-3y
add 43 on both sides
5y+56=3y
subtract 5y on both sides
56=-8y
divide both sides by 8
-7=y or y=-7
c.) 4(2a+2)=8(2-3a)
8a+8=16-24a
add 24a on both sides
32a+8=16
subtract 8 on both sides
32a=8
divide both sides by 32
a=0.25
(hope you understood how I solved for each equation..)