900+Y-3=987

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Solution for 900+Y-3=987 equation: 


Simplifying
900 + Y + -3 = 987

Reorder the terms:
900 + -3 + Y = 987

Combine like terms: 900 + -3 = 897
897 + Y = 987

Solving
897 + Y = 987

Solving for variable 'Y'.

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

Add '-897' to each side of the equation.
897 + -897 + Y = 987 + -897

Combine like terms: 897 + -897 = 0
0 + Y = 987 + -897
Y = 987 + -897

Combine like terms: 987 + -897 = 90
Y = 90

Simplifying
Y = 90

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