56+21+2x=

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Solution for 56+21+2x= equation: 


Simplifying
56 + 21 + 2x = 0

Combine like terms: 56 + 21 = 77
77 + 2x = 0

Solving
77 + 2x = 0

Solving for variable 'x'.

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

Add '-77' to each side of the equation.
77 + -77 + 2x = 0 + -77

Combine like terms: 77 + -77 = 0
0 + 2x = 0 + -77
2x = 0 + -77

Combine like terms: 0 + -77 = -77
2x = -77

Divide each side by '2'.
x = -38.5

Simplifying
x = -38.5

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