2y-21=90+21

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Solution for 2y-21=90+21 equation:


Simplifying
2y + -21 = 90 + 21

Reorder the terms:
-21 + 2y = 90 + 21

Combine like terms: 90 + 21 = 111
-21 + 2y = 111

Solving
-21 + 2y = 111

Solving for variable 'y'.

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

Add '21' to each side of the equation.
-21 + 21 + 2y = 111 + 21

Combine like terms: -21 + 21 = 0
0 + 2y = 111 + 21
2y = 111 + 21

Combine like terms: 111 + 21 = 132
2y = 132

Divide each side by '2'.
y = 66

Simplifying
y = 66

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