7-(2x+5)=20-8x

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Solution for 7-(2x+5)=20-8x equation:


Simplifying
7 + -1(2x + 5) = 20 + -8x

Reorder the terms:
7 + -1(5 + 2x) = 20 + -8x
7 + (5 * -1 + 2x * -1) = 20 + -8x
7 + (-5 + -2x) = 20 + -8x

Combine like terms: 7 + -5 = 2
2 + -2x = 20 + -8x

Solving
2 + -2x = 20 + -8x

Solving for variable 'x'.

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

Add '8x' to each side of the equation.
2 + -2x + 8x = 20 + -8x + 8x

Combine like terms: -2x + 8x = 6x
2 + 6x = 20 + -8x + 8x

Combine like terms: -8x + 8x = 0
2 + 6x = 20 + 0
2 + 6x = 20

Add '-2' to each side of the equation.
2 + -2 + 6x = 20 + -2

Combine like terms: 2 + -2 = 0
0 + 6x = 20 + -2
6x = 20 + -2

Combine like terms: 20 + -2 = 18
6x = 18

Divide each side by '6'.
x = 3

Simplifying
x = 3

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