7y+7(y+3)+8=-21

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Solution for 7y+7(y+3)+8=-21 equation:


Simplifying
7y + 7(y + 3) + 8 = -21

Reorder the terms:
7y + 7(3 + y) + 8 = -21
7y + (3 * 7 + y * 7) + 8 = -21
7y + (21 + 7y) + 8 = -21

Reorder the terms:
21 + 8 + 7y + 7y = -21

Combine like terms: 21 + 8 = 29
29 + 7y + 7y = -21

Combine like terms: 7y + 7y = 14y
29 + 14y = -21

Solving
29 + 14y = -21

Solving for variable 'y'.

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

Add '-29' to each side of the equation.
29 + -29 + 14y = -21 + -29

Combine like terms: 29 + -29 = 0
0 + 14y = -21 + -29
14y = -21 + -29

Combine like terms: -21 + -29 = -50
14y = -50

Divide each side by '14'.
y = -3.571428571

Simplifying
y = -3.571428571

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