56-2x=7x+21

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Solution for 56-2x=7x+21 equation:


Simplifying
56 + -2x = 7x + 21

Reorder the terms:
56 + -2x = 21 + 7x

Solving
56 + -2x = 21 + 7x

Solving for variable 'x'.

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

Add '-7x' to each side of the equation.
56 + -2x + -7x = 21 + 7x + -7x

Combine like terms: -2x + -7x = -9x
56 + -9x = 21 + 7x + -7x

Combine like terms: 7x + -7x = 0
56 + -9x = 21 + 0
56 + -9x = 21

Add '-56' to each side of the equation.
56 + -56 + -9x = 21 + -56

Combine like terms: 56 + -56 = 0
0 + -9x = 21 + -56
-9x = 21 + -56

Combine like terms: 21 + -56 = -35
-9x = -35

Divide each side by '-9'.
x = 3.888888889

Simplifying
x = 3.888888889

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