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-(-7)-4*5=x
We simplify the equation to the form, which is simple to understand
-(-7)-4*5=x
Simplifying:
-(-7)-20=x
Remove unnecessary parentheses
+7-20=x
We move all terms containing x to the left and all other terms to the right.
-1x=-7+20
We simplify left and right side of the equation.
-1x=+13
We divide both sides of the equation by -01 to get x.
x=-13
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