So 8x+4+4x+8=15x-9
Combine like terms.
12x+12=15x-9
Add 9 to both sides.
12x+21=15x
Subtract 12 from both sides.
21=3x
Divide both sides by 3.
x=7
Now plug in 7 for x in 8x+4.
8(7)+4
56+4
=60
Answer
The last one
y+2=-(x+8)
The answer is A. they should work on their plan for managing income.
The first one is 43/72 which can’t be simplified
The second one is 17/18