64y=7(9y-3)

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Solution for 64y=7(9y-3) equation:


Simplifying
64y = 7(9y + -3)

Reorder the terms:
64y = 7(-3 + 9y)
64y = (-3 * 7 + 9y * 7)
64y = (-21 + 63y)

Solving
64y = -21 + 63y

Solving for variable 'y'.

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

Add '-63y' to each side of the equation.
64y + -63y = -21 + 63y + -63y

Combine like terms: 64y + -63y = 1y
1y = -21 + 63y + -63y

Combine like terms: 63y + -63y = 0
1y = -21 + 0
1y = -21

Divide each side by '1'.
y = -21

Simplifying
y = -21

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