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52+2x+1=90
We simplify the equation to the form, which is simple to understand
52+2x+1=90
We move all terms containing x to the left and all other terms to the right.
+2x=+90-52-1
We simplify left and right side of the equation.
+2x=+37
We divide both sides of the equation by 2 to get x.
x=18.5
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