7*9-2y=y

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Solution for 7*9-2y=y equation:


Simplifying
7 * 9 + -2y = y

Multiply 7 * 9
63 + -2y = y

Solving
63 + -2y = y

Solving for variable 'y'.

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

Add '-1y' to each side of the equation.
63 + -2y + -1y = y + -1y

Combine like terms: -2y + -1y = -3y
63 + -3y = y + -1y

Combine like terms: y + -1y = 0
63 + -3y = 0

Add '-63' to each side of the equation.
63 + -63 + -3y = 0 + -63

Combine like terms: 63 + -63 = 0
0 + -3y = 0 + -63
-3y = 0 + -63

Combine like terms: 0 + -63 = -63
-3y = -63

Divide each side by '-3'.
y = 21

Simplifying
y = 21

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