(2y-9)-(9y-7)=

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Solution for (2y-9)-(9y-7)= equation:


Simplifying
(2y + -9) + -1(9y + -7) = 0

Reorder the terms:
(-9 + 2y) + -1(9y + -7) = 0

Remove parenthesis around (-9 + 2y)
-9 + 2y + -1(9y + -7) = 0

Reorder the terms:
-9 + 2y + -1(-7 + 9y) = 0
-9 + 2y + (-7 * -1 + 9y * -1) = 0
-9 + 2y + (7 + -9y) = 0

Reorder the terms:
-9 + 7 + 2y + -9y = 0

Combine like terms: -9 + 7 = -2
-2 + 2y + -9y = 0

Combine like terms: 2y + -9y = -7y
-2 + -7y = 0

Solving
-2 + -7y = 0

Solving for variable 'y'.

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

Add '2' to each side of the equation.
-2 + 2 + -7y = 0 + 2

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

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

Divide each side by '-7'.
y = -0.2857142857

Simplifying
y = -0.2857142857

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