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

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


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

Reorder the terms:
-18 = 7(-3 + y) + -4y
-18 = (-3 * 7 + y * 7) + -4y
-18 = (-21 + 7y) + -4y

Combine like terms: 7y + -4y = 3y
-18 = -21 + 3y

Solving
-18 = -21 + 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 = -21 + 3y + -3y

Combine like terms: 3y + -3y = 0
-18 + -3y = -21 + 0
-18 + -3y = -21

Add '18' to each side of the equation.
-18 + 18 + -3y = -21 + 18

Combine like terms: -18 + 18 = 0
0 + -3y = -21 + 18
-3y = -21 + 18

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

Divide each side by '-3'.
y = 1

Simplifying
y = 1

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