c = 7
Isolate the variable by dividing each side by factors that don't contain the variable.
5x+2y=9
-3x-2y=-7
The +2y and -2y eliminate
2x=2
x=1
Hope This Helps and God Bless!
Answer:
13
Step-by-step explanation:
x + 6 = ?
[Replace x with 7]
7 + 6 = 13
Answer:
-57?
Step-by-step explanation: