9y+-28=7y-42

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Solution for 9y+-28=7y-42 equation:


Simplifying
9y + -28 = 7y + -42

Reorder the terms:
-28 + 9y = 7y + -42

Reorder the terms:
-28 + 9y = -42 + 7y

Solving
-28 + 9y = -42 + 7y

Solving for variable 'y'.

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

Add '-7y' to each side of the equation.
-28 + 9y + -7y = -42 + 7y + -7y

Combine like terms: 9y + -7y = 2y
-28 + 2y = -42 + 7y + -7y

Combine like terms: 7y + -7y = 0
-28 + 2y = -42 + 0
-28 + 2y = -42

Add '28' to each side of the equation.
-28 + 28 + 2y = -42 + 28

Combine like terms: -28 + 28 = 0
0 + 2y = -42 + 28
2y = -42 + 28

Combine like terms: -42 + 28 = -14
2y = -14

Divide each side by '2'.
y = -7

Simplifying
y = -7

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