21=-7(4y+5)

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Solution for 21=-7(4y+5) equation:


Simplifying
21 = -7(4y + 5)

Reorder the terms:
21 = -7(5 + 4y)
21 = (5 * -7 + 4y * -7)
21 = (-35 + -28y)

Solving
21 = -35 + -28y

Solving for variable 'y'.

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

Add '28y' to each side of the equation.
21 + 28y = -35 + -28y + 28y

Combine like terms: -28y + 28y = 0
21 + 28y = -35 + 0
21 + 28y = -35

Add '-21' to each side of the equation.
21 + -21 + 28y = -35 + -21

Combine like terms: 21 + -21 = 0
0 + 28y = -35 + -21
28y = -35 + -21

Combine like terms: -35 + -21 = -56
28y = -56

Divide each side by '28'.
y = -2

Simplifying
y = -2

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