Answer:
It is C. y = -13
Explanation:
Alright! Now, let's write down the equation.
2.4y + 13 + ( -6.5y ) = 0.24y - 8.58 + ( -6y )
First thing first, remove the parentheses.
(Note : You may know this already but when there's a "plus" sign in front of an expression in the brackets. The sign of that expression remains the same.)
Anyways, let's continue.
After the first step, we will get this.
2.4y + 13 - 6.5y = 0.24y - 8.58 -6y
Now, collect like terms.
- 4.1y + 13 = - 5.76y - 8.58
Now, move the constinct to the right. (Or left if you wishes to, that is.)
- 4.1y + 5.76y = - 8.58 - 13
Calculate.
1.66y = -21.58
We only want the value of "y", so divide both sides by "1.66".
y = -13
There we have the answer!
I hope it helps.