3=66-7y

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Solution for 3=66-7y equation:


Simplifying
3 = 66 + -7y

Solving
3 = 66 + -7y

Solving for variable 'y'.

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

Add '7y' to each side of the equation.
3 + 7y = 66 + -7y + 7y

Combine like terms: -7y + 7y = 0
3 + 7y = 66 + 0
3 + 7y = 66

Add '-3' to each side of the equation.
3 + -3 + 7y = 66 + -3

Combine like terms: 3 + -3 = 0
0 + 7y = 66 + -3
7y = 66 + -3

Combine like terms: 66 + -3 = 63
7y = 63

Divide each side by '7'.
y = 9

Simplifying
y = 9

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