8y+3(y+4)=-21

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Solution for 8y+3(y+4)=-21 equation:


Simplifying
8y + 3(y + 4) = -21

Reorder the terms:
8y + 3(4 + y) = -21
8y + (4 * 3 + y * 3) = -21
8y + (12 + 3y) = -21

Reorder the terms:
12 + 8y + 3y = -21

Combine like terms: 8y + 3y = 11y
12 + 11y = -21

Solving
12 + 11y = -21

Solving for variable 'y'.

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

Add '-12' to each side of the equation.
12 + -12 + 11y = -21 + -12

Combine like terms: 12 + -12 = 0
0 + 11y = -21 + -12
11y = -21 + -12

Combine like terms: -21 + -12 = -33
11y = -33

Divide each side by '11'.
y = -3

Simplifying
y = -3

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