6=-4y-21

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Solution for 6=-4y-21 equation:


Simplifying
6 = -4y + -21

Reorder the terms:
6 = -21 + -4y

Solving
6 = -21 + -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.
6 + 4y = -21 + -4y + 4y

Combine like terms: -4y + 4y = 0
6 + 4y = -21 + 0
6 + 4y = -21

Add '-6' to each side of the equation.
6 + -6 + 4y = -21 + -6

Combine like terms: 6 + -6 = 0
0 + 4y = -21 + -6
4y = -21 + -6

Combine like terms: -21 + -6 = -27
4y = -27

Divide each side by '4'.
y = -6.75

Simplifying
y = -6.75

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