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81+(6*7)x=45
We simplify the equation to the form, which is simple to understand
81+(6*7)x=45
Simplifying:
81+(+42)*x=45
Reorder the terms in parentheses
81+(+42x)=45
Remove unnecessary parentheses
+81+42x=+45
We move all terms containing x to the left and all other terms to the right.
+42x=+45-81
We simplify left and right side of the equation.
+42x=-36
We divide both sides of the equation by 42 to get x.
x=-0.857142857143
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