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2.1(x+3)=10.5
We simplify the equation to the form, which is simple to understand
2.1(x+3)=10.5
Reorder the terms in parentheses
+(+2.1x+6.3)=10.5
Remove unnecessary parentheses
+2.1x+6.3=+10.5
We move all terms containing x to the left and all other terms to the right.
+2.1x=+10.5-6.3
We simplify left and right side of the equation.
+2.1x=+4.2
We divide both sides of the equation by 2.1 to get x.
x=2
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