Answer:
Improper fraction form: y = 36/5
Decimal form: y = 7.2
Mixed number form: y = 7 1/5
Step-by-step explanation:
First distribute 25 among everything inside the 1st parentheses to get 125y - 250 in its place.
Now you have 7 + 125y - 250 = 45 (y+5) + 15y
Next distribute the 45 among everything in the 2nd parentheses to get 45y + 225 + 15y in its place.
Now, altogether you have 7 + 125y - 250 = 45y + 225 + 15y
Now we combine the like terms:
7 + (-250) = 7 - 250 = -243
45y + 15y = 60y
-243 + 125y = 60y + 225
Now we isolate for y:
Add 243 to 225, to get 468, and then subtract 60y from 125y to get 65y.
Now we have 65y = 468, so finally we divide 65 on both sides to get y = 468/65, and we can simplify this fraction to 36/5.
As a decimal: 7.2
As a mixed number: 7 1/5
Hope this helps you :)
