(2x-5)2-(x-6)2=80

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Solution for (2x-5)2-(x-6)2=80 equation:


Simplifying
(2x + -5) * 2 + -1(x + -6) * 2 = 80

Reorder the terms:
(-5 + 2x) * 2 + -1(x + -6) * 2 = 80

Reorder the terms for easier multiplication:
2(-5 + 2x) + -1(x + -6) * 2 = 80
(-5 * 2 + 2x * 2) + -1(x + -6) * 2 = 80
(-10 + 4x) + -1(x + -6) * 2 = 80

Reorder the terms:
-10 + 4x + -1(-6 + x) * 2 = 80

Reorder the terms for easier multiplication:
-10 + 4x + -1 * 2(-6 + x) = 80

Multiply -1 * 2
-10 + 4x + -2(-6 + x) = 80
-10 + 4x + (-6 * -2 + x * -2) = 80
-10 + 4x + (12 + -2x) = 80

Reorder the terms:
-10 + 12 + 4x + -2x = 80

Combine like terms: -10 + 12 = 2
2 + 4x + -2x = 80

Combine like terms: 4x + -2x = 2x
2 + 2x = 80

Solving
2 + 2x = 80

Solving for variable 'x'.

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

Add '-2' to each side of the equation.
2 + -2 + 2x = 80 + -2

Combine like terms: 2 + -2 = 0
0 + 2x = 80 + -2
2x = 80 + -2

Combine like terms: 80 + -2 = 78
2x = 78

Divide each side by '2'.
x = 39

Simplifying
x = 39

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