49+77+x=90

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Solution for 49+77+x=90 equation: 


Simplifying
49 + 77 + x = 90

Combine like terms: 49 + 77 = 126
126 + x = 90

Solving
126 + x = 90

Solving for variable 'x'.

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

Add '-126' to each side of the equation.
126 + -126 + x = 90 + -126

Combine like terms: 126 + -126 = 0
0 + x = 90 + -126
x = 90 + -126

Combine like terms: 90 + -126 = -36
x = -36

Simplifying
x = -36

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