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4*(x+3)=13
We simplify the equation to the form, which is simple to understand
4*(x+3)=13
Reorder the terms in parentheses
+(+4x+12)=13
Remove unnecessary parentheses
+4x+12=+13
We move all terms containing x to the left and all other terms to the right.
+4x=+13-12
We simplify left and right side of the equation.
+4x=+1
We divide both sides of the equation by 4 to get x.
x=0.25
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