7y+18=9y+12

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Solution for 7y+18=9y+12 equation:


Simplifying
7y + 18 = 9y + 12

Reorder the terms:
18 + 7y = 9y + 12

Reorder the terms:
18 + 7y = 12 + 9y

Solving
18 + 7y = 12 + 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.
18 + 7y + -9y = 12 + 9y + -9y

Combine like terms: 7y + -9y = -2y
18 + -2y = 12 + 9y + -9y

Combine like terms: 9y + -9y = 0
18 + -2y = 12 + 0
18 + -2y = 12

Add '-18' to each side of the equation.
18 + -18 + -2y = 12 + -18

Combine like terms: 18 + -18 = 0
0 + -2y = 12 + -18
-2y = 12 + -18

Combine like terms: 12 + -18 = -6
-2y = -6

Divide each side by '-2'.
y = 3

Simplifying
y = 3

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