(4x+7)-(-8x-2)=20+10x

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Solution for (4x+7)-(-8x-2)=20+10x equation:


Simplifying
(4x + 7) + -1(-8x + -2) = 20 + 10x

Reorder the terms:
(7 + 4x) + -1(-8x + -2) = 20 + 10x

Remove parenthesis around (7 + 4x)
7 + 4x + -1(-8x + -2) = 20 + 10x

Reorder the terms:
7 + 4x + -1(-2 + -8x) = 20 + 10x
7 + 4x + (-2 * -1 + -8x * -1) = 20 + 10x
7 + 4x + (2 + 8x) = 20 + 10x

Reorder the terms:
7 + 2 + 4x + 8x = 20 + 10x

Combine like terms: 7 + 2 = 9
9 + 4x + 8x = 20 + 10x

Combine like terms: 4x + 8x = 12x
9 + 12x = 20 + 10x

Solving
9 + 12x = 20 + 10x

Solving for variable 'x'.

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

Add '-10x' to each side of the equation.
9 + 12x + -10x = 20 + 10x + -10x

Combine like terms: 12x + -10x = 2x
9 + 2x = 20 + 10x + -10x

Combine like terms: 10x + -10x = 0
9 + 2x = 20 + 0
9 + 2x = 20

Add '-9' to each side of the equation.
9 + -9 + 2x = 20 + -9

Combine like terms: 9 + -9 = 0
0 + 2x = 20 + -9
2x = 20 + -9

Combine like terms: 20 + -9 = 11
2x = 11

Divide each side by '2'.
x = 5.5

Simplifying
x = 5.5

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