10y-10=9y-7

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Solution for 10y-10=9y-7 equation:


Simplifying
10y + -10 = 9y + -7

Reorder the terms:
-10 + 10y = 9y + -7

Reorder the terms:
-10 + 10y = -7 + 9y

Solving
-10 + 10y = -7 + 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.
-10 + 10y + -9y = -7 + 9y + -9y

Combine like terms: 10y + -9y = 1y
-10 + 1y = -7 + 9y + -9y

Combine like terms: 9y + -9y = 0
-10 + 1y = -7 + 0
-10 + 1y = -7

Add '10' to each side of the equation.
-10 + 10 + 1y = -7 + 10

Combine like terms: -10 + 10 = 0
0 + 1y = -7 + 10
1y = -7 + 10

Combine like terms: -7 + 10 = 3
1y = 3

Divide each side by '1'.
y = 3

Simplifying
y = 3

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