7x+7(x-10)=84

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Solution for 7x+7(x-10)=84 equation:


Simplifying
7x + 7(x + -10) = 84

Reorder the terms:
7x + 7(-10 + x) = 84
7x + (-10 * 7 + x * 7) = 84
7x + (-70 + 7x) = 84

Reorder the terms:
-70 + 7x + 7x = 84

Combine like terms: 7x + 7x = 14x
-70 + 14x = 84

Solving
-70 + 14x = 84

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '70' to each side of the equation.
-70 + 70 + 14x = 84 + 70

Combine like terms: -70 + 70 = 0
0 + 14x = 84 + 70
14x = 84 + 70

Combine like terms: 84 + 70 = 154
14x = 154

Divide each side by '14'.
x = 11

Simplifying
x = 11

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