9y+18=7y+128

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Solution for 9y+18=7y+128 equation:


Simplifying
9y + 18 = 7y + 128

Reorder the terms:
18 + 9y = 7y + 128

Reorder the terms:
18 + 9y = 128 + 7y

Solving
18 + 9y = 128 + 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.
18 + 9y + -7y = 128 + 7y + -7y

Combine like terms: 9y + -7y = 2y
18 + 2y = 128 + 7y + -7y

Combine like terms: 7y + -7y = 0
18 + 2y = 128 + 0
18 + 2y = 128

Add '-18' to each side of the equation.
18 + -18 + 2y = 128 + -18

Combine like terms: 18 + -18 = 0
0 + 2y = 128 + -18
2y = 128 + -18

Combine like terms: 128 + -18 = 110
2y = 110

Divide each side by '2'.
y = 55

Simplifying
y = 55

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