Answer:
y = -19/3 (decimal: y = -6.333.....)
Explanation:
y - (6 - y) = 8(y + 4)
expand 2y - 6
expand 8y + 32
2y - 6 = 8y + 32
add 6 to both sides
2y - 6 + 6 = 8y + 32 + 6
simplify
2y = 8y +38
subtract 8y from both sides
2y - 8y = 8y + 38 - 8y
-6y = 38
divide both sides by -6
-6y/-6 = 38/-6
simplify
y = -19/3