8x+13+2x+12=6x+21

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Solution for 8x+13+2x+12=6x+21 equation:


Simplifying
8x + 13 + 2x + 12 = 6x + 21

Reorder the terms:
13 + 12 + 8x + 2x = 6x + 21

Combine like terms: 13 + 12 = 25
25 + 8x + 2x = 6x + 21

Combine like terms: 8x + 2x = 10x
25 + 10x = 6x + 21

Reorder the terms:
25 + 10x = 21 + 6x

Solving
25 + 10x = 21 + 6x

Solving for variable 'x'.

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

Add '-6x' to each side of the equation.
25 + 10x + -6x = 21 + 6x + -6x

Combine like terms: 10x + -6x = 4x
25 + 4x = 21 + 6x + -6x

Combine like terms: 6x + -6x = 0
25 + 4x = 21 + 0
25 + 4x = 21

Add '-25' to each side of the equation.
25 + -25 + 4x = 21 + -25

Combine like terms: 25 + -25 = 0
0 + 4x = 21 + -25
4x = 21 + -25

Combine like terms: 21 + -25 = -4
4x = -4

Divide each side by '4'.
x = -1

Simplifying
x = -1

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