20x-51=9x-7

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Solution for 20x-51=9x-7 equation:


Simplifying
20x + -51 = 9x + -7

Reorder the terms:
-51 + 20x = 9x + -7

Reorder the terms:
-51 + 20x = -7 + 9x

Solving
-51 + 20x = -7 + 9x

Solving for variable 'x'.

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

Add '-9x' to each side of the equation.
-51 + 20x + -9x = -7 + 9x + -9x

Combine like terms: 20x + -9x = 11x
-51 + 11x = -7 + 9x + -9x

Combine like terms: 9x + -9x = 0
-51 + 11x = -7 + 0
-51 + 11x = -7

Add '51' to each side of the equation.
-51 + 51 + 11x = -7 + 51

Combine like terms: -51 + 51 = 0
0 + 11x = -7 + 51
11x = -7 + 51

Combine like terms: -7 + 51 = 44
11x = 44

Divide each side by '11'.
x = 4

Simplifying
x = 4

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