6+9=3+-2y

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Solution for 6+9=3+-2y equation:


Simplifying
6 + 9 = 3 + -2y

Combine like terms: 6 + 9 = 15
15 = 3 + -2y

Solving
15 = 3 + -2y

Solving for variable 'y'.

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

Add '2y' to each side of the equation.
15 + 2y = 3 + -2y + 2y

Combine like terms: -2y + 2y = 0
15 + 2y = 3 + 0
15 + 2y = 3

Add '-15' to each side of the equation.
15 + -15 + 2y = 3 + -15

Combine like terms: 15 + -15 = 0
0 + 2y = 3 + -15
2y = 3 + -15

Combine like terms: 3 + -15 = -12
2y = -12

Divide each side by '2'.
y = -6

Simplifying
y = -6

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