10x-(6x-5)=21

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Solution for 10x-(6x-5)=21 equation:


Simplifying
10x + -1(6x + -5) = 21

Reorder the terms:
10x + -1(-5 + 6x) = 21
10x + (-5 * -1 + 6x * -1) = 21
10x + (5 + -6x) = 21

Reorder the terms:
5 + 10x + -6x = 21

Combine like terms: 10x + -6x = 4x
5 + 4x = 21

Solving
5 + 4x = 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 + 4x = 21 + -5

Combine like terms: 5 + -5 = 0
0 + 4x = 21 + -5
4x = 21 + -5

Combine like terms: 21 + -5 = 16
4x = 16

Divide each side by '4'.
x = 4

Simplifying
x = 4

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