2y-400=42

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Solution for 2y-400=42 equation: 


Simplifying
2y + -400 = 42

Reorder the terms:
-400 + 2y = 42

Solving
-400 + 2y = 42

Solving for variable 'y'.

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

Add '400' to each side of the equation.
-400 + 400 + 2y = 42 + 400

Combine like terms: -400 + 400 = 0
0 + 2y = 42 + 400
2y = 42 + 400

Combine like terms: 42 + 400 = 442
2y = 442

Divide each side by '2'.
y = 221

Simplifying
y = 221

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