12y-7y-9=64.40

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Solution for 12y-7y-9=64.40 equation:


Simplifying
12y + -7y + -9 = 64.40

Reorder the terms:
-9 + 12y + -7y = 64.40

Combine like terms: 12y + -7y = 5y
-9 + 5y = 64.40

Solving
-9 + 5y = 64.40

Solving for variable 'y'.

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

Add '9' to each side of the equation.
-9 + 9 + 5y = 64.40 + 9

Combine like terms: -9 + 9 = 0
0 + 5y = 64.40 + 9
5y = 64.40 + 9

Combine like terms: 64.40 + 9 = 73.4
5y = 73.4

Divide each side by '5'.
y = 14.68

Simplifying
y = 14.68

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