Question

50 Points
28 = -6a+ (-2a) + (-3) + 7

Answer 1

Addition of same coefficient
28=-8a+4
Collect like terms
28-4=-8a
Divide both side by -8
a=28-4/8
a=3

Answer 2

28=-8a+4

Explanation:

combine like terms

-6+-2=-8

-3+7=4