8x+321=21x-342

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Solution for 8x+321=21x-342 equation:


Simplifying
8x + 321 = 21x + -342

Reorder the terms:
321 + 8x = 21x + -342

Reorder the terms:
321 + 8x = -342 + 21x

Solving
321 + 8x = -342 + 21x

Solving for variable 'x'.

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

Add '-21x' to each side of the equation.
321 + 8x + -21x = -342 + 21x + -21x

Combine like terms: 8x + -21x = -13x
321 + -13x = -342 + 21x + -21x

Combine like terms: 21x + -21x = 0
321 + -13x = -342 + 0
321 + -13x = -342

Add '-321' to each side of the equation.
321 + -321 + -13x = -342 + -321

Combine like terms: 321 + -321 = 0
0 + -13x = -342 + -321
-13x = -342 + -321

Combine like terms: -342 + -321 = -663
-13x = -663

Divide each side by '-13'.
x = 51

Simplifying
x = 51

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