155=7x+6(7x-15)

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Solution for 155=7x+6(7x-15) equation:


155=7x+6(7x-15)

We simplify the equation to the form, which is simple to understand 
155=7x+6(7x-15)

Reorder the terms in parentheses
155=7x+(+42x-90)

Remove unnecessary parentheses
+155=+7x+42x-90

We move all terms containing x to the left and all other terms to the right. 
-7x-42x=-90-155

We simplify left and right side of the equation. 
-49x=-245

We divide both sides of the equation by -49 to get x. 
x=5

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