9(50+-7y)-y=66

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Solution for 9(50+-7y)-y=66 equation:


Simplifying
9(50 + -7y) + -1y = 66
(50 * 9 + -7y * 9) + -1y = 66
(450 + -63y) + -1y = 66

Combine like terms: -63y + -1y = -64y
450 + -64y = 66

Solving
450 + -64y = 66

Solving for variable 'y'.

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

Add '-450' to each side of the equation.
450 + -450 + -64y = 66 + -450

Combine like terms: 450 + -450 = 0
0 + -64y = 66 + -450
-64y = 66 + -450

Combine like terms: 66 + -450 = -384
-64y = -384

Divide each side by '-64'.
y = 6

Simplifying
y = 6

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