x+4+21=90

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Solution for x+4+21=90 equation: 


Simplifying
x + 4 + 21 = 90

Reorder the terms:
4 + 21 + x = 90

Combine like terms: 4 + 21 = 25
25 + x = 90

Solving
25 + x = 90

Solving for variable 'x'.

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

Add '-25' to each side of the equation.
25 + -25 + x = 90 + -25

Combine like terms: 25 + -25 = 0
0 + x = 90 + -25
x = 90 + -25

Combine like terms: 90 + -25 = 65
x = 65

Simplifying
x = 65

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