7y-a=-2y

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Solution for 7y-a=-2y equation:


Simplifying
7y + -1a = -2y

Reorder the terms:
-1a + 7y = -2y

Solving
-1a + 7y = -2y

Solving for variable 'a'.

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

Add '-7y' to each side of the equation.
-1a + 7y + -7y = -2y + -7y

Combine like terms: 7y + -7y = 0
-1a + 0 = -2y + -7y
-1a = -2y + -7y

Combine like terms: -2y + -7y = -9y
-1a = -9y

Divide each side by '-1'.
a = 9y

Simplifying
a = 9y

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