21=5(4y-6)

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Solution for 21=5(4y-6) equation:


Simplifying
21 = 5(4y + -6)

Reorder the terms:
21 = 5(-6 + 4y)
21 = (-6 * 5 + 4y * 5)
21 = (-30 + 20y)

Solving
21 = -30 + 20y

Solving for variable 'y'.

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

Add '-20y' to each side of the equation.
21 + -20y = -30 + 20y + -20y

Combine like terms: 20y + -20y = 0
21 + -20y = -30 + 0
21 + -20y = -30

Add '-21' to each side of the equation.
21 + -21 + -20y = -30 + -21

Combine like terms: 21 + -21 = 0
0 + -20y = -30 + -21
-20y = -30 + -21

Combine like terms: -30 + -21 = -51
-20y = -51

Divide each side by '-20'.
y = 2.55

Simplifying
y = 2.55

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