D+42=90

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Solution for D+42=90 equation: 


Simplifying
D + 42 = 90

Reorder the terms:
42 + D = 90

Solving
42 + D = 90

Solving for variable 'D'.

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

Add '-42' to each side of the equation.
42 + -42 + D = 90 + -42

Combine like terms: 42 + -42 = 0
0 + D = 90 + -42
D = 90 + -42

Combine like terms: 90 + -42 = 48
D = 48

Simplifying
D = 48

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