(y-7)-(y-6)=9y

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Solution for (y-7)-(y-6)=9y equation:


Simplifying
(y + -7) + -1(y + -6) = 9y

Reorder the terms:
(-7 + y) + -1(y + -6) = 9y

Remove parenthesis around (-7 + y)
-7 + y + -1(y + -6) = 9y

Reorder the terms:
-7 + y + -1(-6 + y) = 9y
-7 + y + (-6 * -1 + y * -1) = 9y
-7 + y + (6 + -1y) = 9y

Reorder the terms:
-7 + 6 + y + -1y = 9y

Combine like terms: -7 + 6 = -1
-1 + y + -1y = 9y

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

Solving
-1 = 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.
-1 + -9y = 9y + -9y

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

Add '1' to each side of the equation.
-1 + 1 + -9y = 0 + 1

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

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

Divide each side by '-9'.
y = -0.1111111111

Simplifying
y = -0.1111111111

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