56+28+X=90

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Solution for 56+28+X=90 equation: 


Simplifying
56 + 28 + X = 90

Combine like terms: 56 + 28 = 84
84 + X = 90

Solving
84 + X = 90

Solving for variable 'X'.

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

Add '-84' to each side of the equation.
84 + -84 + X = 90 + -84

Combine like terms: 84 + -84 = 0
0 + X = 90 + -84
X = 90 + -84

Combine like terms: 90 + -84 = 6
X = 6

Simplifying
X = 6

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