20 + 17y = -6 + 15y
First, regroup your terms.
[tex]20 + 17y = 15y - 6[/tex]
Second, take away '15y' from each side.
[tex]20 + 17y - 15y = -6[/tex]
Third, subtract '17y - 15y' to get '2y'.
[tex]20 + 2y = -6[/tex]
Fourth, take away '20' from both sides.
[tex]2y = -6 - 20[/tex]
Fifth, simplify '-6 - 20' to get '-26'.
[tex]2y = -26[/tex]
Sixth, divide both sides by '2'.
[tex]y = -\frac{26}{2} [/tex]
Seventh, how many times goes 2 go into 26? 26 ÷ 2 = 13.
[tex]y = -13[/tex]
Answer: y = -13
