7y-8+7y=9

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Solution for 7y-8+7y=9 equation:


Simplifying
7y + -8 + 7y = 9

Reorder the terms:
-8 + 7y + 7y = 9

Combine like terms: 7y + 7y = 14y
-8 + 14y = 9

Solving
-8 + 14y = 9

Solving for variable 'y'.

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

Add '8' to each side of the equation.
-8 + 8 + 14y = 9 + 8

Combine like terms: -8 + 8 = 0
0 + 14y = 9 + 8
14y = 9 + 8

Combine like terms: 9 + 8 = 17
14y = 17

Divide each side by '14'.
y = 1.214285714

Simplifying
y = 1.214285714

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