7(13-8y)=9(5+4y)

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Solution for 7(13-8y)=9(5+4y) equation:


Simplifying
7(13 + -8y) = 9(5 + 4y)
(13 * 7 + -8y * 7) = 9(5 + 4y)
(91 + -56y) = 9(5 + 4y)
91 + -56y = (5 * 9 + 4y * 9)
91 + -56y = (45 + 36y)

Solving
91 + -56y = 45 + 36y

Solving for variable 'y'.

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

Add '-36y' to each side of the equation.
91 + -56y + -36y = 45 + 36y + -36y

Combine like terms: -56y + -36y = -92y
91 + -92y = 45 + 36y + -36y

Combine like terms: 36y + -36y = 0
91 + -92y = 45 + 0
91 + -92y = 45

Add '-91' to each side of the equation.
91 + -91 + -92y = 45 + -91

Combine like terms: 91 + -91 = 0
0 + -92y = 45 + -91
-92y = 45 + -91

Combine like terms: 45 + -91 = -46
-92y = -46

Divide each side by '-92'.
y = 0.5

Simplifying
y = 0.5

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