a = 3
Explanations:The given equation is:
- 2 + a = 1
Collect like terms:
This means that the -2 will cross the equality sign to the Right Hand Side to become +2
The equation will then become:
a = 1 + 2
a = 3
⇒I will use the additive inverse to solve the problem.
[tex]-2+(2)+a=1+(2)\\a=3[/tex]
GOODLUCK!!
