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

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


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

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

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

Solving
21 + 7y = -7

Solving for variable 'y'.

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

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

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

Combine like terms: -7 + -21 = -28
7y = -28

Divide each side by '7'.
y = -4

Simplifying
y = -4

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