9(y-7)=8(y-5)

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Solution for 9(y-7)=8(y-5) equation:


Simplifying
9(y + -7) = 8(y + -5)

Reorder the terms:
9(-7 + y) = 8(y + -5)
(-7 * 9 + y * 9) = 8(y + -5)
(-63 + 9y) = 8(y + -5)

Reorder the terms:
-63 + 9y = 8(-5 + y)
-63 + 9y = (-5 * 8 + y * 8)
-63 + 9y = (-40 + 8y)

Solving
-63 + 9y = -40 + 8y

Solving for variable 'y'.

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

Add '-8y' to each side of the equation.
-63 + 9y + -8y = -40 + 8y + -8y

Combine like terms: 9y + -8y = 1y
-63 + 1y = -40 + 8y + -8y

Combine like terms: 8y + -8y = 0
-63 + 1y = -40 + 0
-63 + 1y = -40

Add '63' to each side of the equation.
-63 + 63 + 1y = -40 + 63

Combine like terms: -63 + 63 = 0
0 + 1y = -40 + 63
1y = -40 + 63

Combine like terms: -40 + 63 = 23
1y = 23

Divide each side by '1'.
y = 23

Simplifying
y = 23

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