Answer:
Explanation:
First we must add 4 to both sides.
+4 +4
-4 + 4 = 0
-2 +4 = 2
Isolating a variable means that it is alone on its side of the eqation.
x is now isolated and we also have the solution for it.
x=2
Add 4 to both sides:
-2=-4+x
-2+4=-4+4+x
2=x
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