4+11y-1=9y+21-7y

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Solution for 4+11y-1=9y+21-7y equation:


Simplifying
4 + 11y + -1 = 9y + 21 + -7y

Reorder the terms:
4 + -1 + 11y = 9y + 21 + -7y

Combine like terms: 4 + -1 = 3
3 + 11y = 9y + 21 + -7y

Reorder the terms:
3 + 11y = 21 + 9y + -7y

Combine like terms: 9y + -7y = 2y
3 + 11y = 21 + 2y

Solving
3 + 11y = 21 + 2y

Solving for variable 'y'.

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

Add '-2y' to each side of the equation.
3 + 11y + -2y = 21 + 2y + -2y

Combine like terms: 11y + -2y = 9y
3 + 9y = 21 + 2y + -2y

Combine like terms: 2y + -2y = 0
3 + 9y = 21 + 0
3 + 9y = 21

Add '-3' to each side of the equation.
3 + -3 + 9y = 21 + -3

Combine like terms: 3 + -3 = 0
0 + 9y = 21 + -3
9y = 21 + -3

Combine like terms: 21 + -3 = 18
9y = 18

Divide each side by '9'.
y = 2

Simplifying
y = 2

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