(7+x)2-130=(7x)2

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Solution for (7+x)2-130=(7x)2 equation:


Simplifying
(7 + x) * 2 + -130 = (7x) * 2

Reorder the terms for easier multiplication:
2(7 + x) + -130 = (7x) * 2
(7 * 2 + x * 2) + -130 = (7x) * 2
(14 + 2x) + -130 = (7x) * 2

Reorder the terms:
14 + -130 + 2x = (7x) * 2

Combine like terms: 14 + -130 = -116
-116 + 2x = (7x) * 2

Remove parenthesis around (7x)
-116 + 2x = 7x * 2

Reorder the terms for easier multiplication:
-116 + 2x = 7 * 2x

Multiply 7 * 2
-116 + 2x = 14x

Solving
-116 + 2x = 14x

Solving for variable 'x'.

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

Add '-14x' to each side of the equation.
-116 + 2x + -14x = 14x + -14x

Combine like terms: 2x + -14x = -12x
-116 + -12x = 14x + -14x

Combine like terms: 14x + -14x = 0
-116 + -12x = 0

Add '116' to each side of the equation.
-116 + 116 + -12x = 0 + 116

Combine like terms: -116 + 116 = 0
0 + -12x = 0 + 116
-12x = 0 + 116

Combine like terms: 0 + 116 = 116
-12x = 116

Divide each side by '-12'.
x = -9.666666667

Simplifying
x = -9.666666667

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