7y+15=9y+13

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Solution for 7y+15=9y+13 equation:


Simplifying
7y + 15 = 9y + 13

Reorder the terms:
15 + 7y = 9y + 13

Reorder the terms:
15 + 7y = 13 + 9y

Solving
15 + 7y = 13 + 9y

Solving for variable 'y'.

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

Add '-9y' to each side of the equation.
15 + 7y + -9y = 13 + 9y + -9y

Combine like terms: 7y + -9y = -2y
15 + -2y = 13 + 9y + -9y

Combine like terms: 9y + -9y = 0
15 + -2y = 13 + 0
15 + -2y = 13

Add '-15' to each side of the equation.
15 + -15 + -2y = 13 + -15

Combine like terms: 15 + -15 = 0
0 + -2y = 13 + -15
-2y = 13 + -15

Combine like terms: 13 + -15 = -2
-2y = -2

Divide each side by '-2'.
y = 1

Simplifying
y = 1

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