18y+3y-21y+3y=12

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Solution for 18y+3y-21y+3y=12 equation:


Simplifying
18y + 3y + -21y + 3y = 12

Combine like terms: 18y + 3y = 21y
21y + -21y + 3y = 12

Combine like terms: 21y + -21y = 0
0 + 3y = 12
3y = 12

Solving
3y = 12

Solving for variable 'y'.

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

Divide each side by '3'.
y = 4

Simplifying
y = 4

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