18=7y-4y

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Solution for 18=7y-4y equation:


Simplifying
18 = 7y + -4y

Combine like terms: 7y + -4y = 3y
18 = 3y

Solving
18 = 3y

Solving for variable 'y'.

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

Add '-3y' to each side of the equation.
18 + -3y = 3y + -3y

Combine like terms: 3y + -3y = 0
18 + -3y = 0

Add '-18' to each side of the equation.
18 + -18 + -3y = 0 + -18

Combine like terms: 18 + -18 = 0
0 + -3y = 0 + -18
-3y = 0 + -18

Combine like terms: 0 + -18 = -18
-3y = -18

Divide each side by '-3'.
y = 6

Simplifying
y = 6

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