51-x-30-x=0

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Solution for 51-x-30-x=0 equation:


Simplifying
51 + -1x + -30 + -1x = 0

Reorder the terms:
51 + -30 + -1x + -1x = 0

Combine like terms: 51 + -30 = 21
21 + -1x + -1x = 0

Combine like terms: -1x + -1x = -2x
21 + -2x = 0

Solving
21 + -2x = 0

Solving for variable 'x'.

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

Add '-21' to each side of the equation.
21 + -21 + -2x = 0 + -21

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

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

Divide each side by '-2'.
x = 10.5

Simplifying
x = 10.5

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