Y-7x=-21

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Solution for Y-7x=-21 equation: 


Simplifying
Y + -7x = -21

Solving
Y + -7x = -21

Solving for variable 'Y'.

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

Add '7x' to each side of the equation.
Y + -7x + 7x = -21 + 7x

Combine like terms: -7x + 7x = 0
Y + 0 = -21 + 7x
Y = -21 + 7x

Simplifying
Y = -21 + 7x

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