18=4(y+3)-7y

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Solution for 18=4(y+3)-7y equation:


Simplifying
18 = 4(y + 3) + -7y

Reorder the terms:
18 = 4(3 + y) + -7y
18 = (3 * 4 + y * 4) + -7y
18 = (12 + 4y) + -7y

Combine like terms: 4y + -7y = -3y
18 = 12 + -3y

Solving
18 = 12 + -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 = 12 + -3y + 3y

Combine like terms: -3y + 3y = 0
18 + 3y = 12 + 0
18 + 3y = 12

Add '-18' to each side of the equation.
18 + -18 + 3y = 12 + -18

Combine like terms: 18 + -18 = 0
0 + 3y = 12 + -18
3y = 12 + -18

Combine like terms: 12 + -18 = -6
3y = -6

Divide each side by '3'.
y = -2

Simplifying
y = -2

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