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12*12+x=147
We simplify the equation to the form, which is simple to understand
12*12+x=147
Simplifying:
+144+x=147
We move all terms containing x to the left and all other terms to the right.
+1x=+147-144
We simplify left and right side of the equation.
+1x=+3
We divide both sides of the equation by 1 to get x.
x=3
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