(8x-(6x-5))=21

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Solution for (8x-(6x-5))=21 equation:


Simplifying
(8x + -1(6x + -5)) = 21

Reorder the terms:
(8x + -1(-5 + 6x)) = 21
(8x + (-5 * -1 + 6x * -1)) = 21
(8x + (5 + -6x)) = 21

Reorder the terms:
(5 + 8x + -6x) = 21

Combine like terms: 8x + -6x = 2x
(5 + 2x) = 21

Remove parenthesis around (5 + 2x)
5 + 2x = 21

Solving
5 + 2x = 21

Solving for variable 'x'.

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

Add '-5' to each side of the equation.
5 + -5 + 2x = 21 + -5

Combine like terms: 5 + -5 = 0
0 + 2x = 21 + -5
2x = 21 + -5

Combine like terms: 21 + -5 = 16
2x = 16

Divide each side by '2'.
x = 8

Simplifying
x = 8

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