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7(-7)+4(x)=-28
We simplify the equation to the form, which is simple to understand
7(-7)+4(x)=-28
Reorder the terms in parentheses
+(-49)+4*(x)=-28
Remove unnecessary parentheses
-49+4+*(+x+)=-28
Reorder the terms in parentheses
-49+(+4x)=-28
Remove unnecessary parentheses
-49+4x=-28
We move all terms containing x to the left and all other terms to the right.
+4x=-28+49
We simplify left and right side of the equation.
+4x=+21
We divide both sides of the equation by 4 to get x.
x=5.25
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