-3(y+7)=4y

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


Simplifying
-3(y + 7) = 4y

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

Solving
-21 + -3y = 4y

Solving for variable 'y'.

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

Add '-4y' to each side of the equation.
-21 + -3y + -4y = 4y + -4y

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

Combine like terms: 4y + -4y = 0
-21 + -7y = 0

Add '21' to each side of the equation.
-21 + 21 + -7y = 0 + 21

Combine like terms: -21 + 21 = 0
0 + -7y = 0 + 21
-7y = 0 + 21

Combine like terms: 0 + 21 = 21
-7y = 21

Divide each side by '-7'.
y = -3

Simplifying
y = -3

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