Answer:
x=3
Explanation:
This should be easy.
4+x=7
-4 -4
x=7-4
Word explanation:
Here, we're solving for the variable x, first, we need to isolate x and therefore subtract 4 on both sides, 7 minus 4 is 3, so x is equal to 3.
x=33
you move the 4 to the other side
so
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