20=-3(7-2y)+5

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Solution for 20=-3(7-2y)+5 equation:


Simplifying
20 = -3(7 + -2y) + 5
20 = (7 * -3 + -2y * -3) + 5
20 = (-21 + 6y) + 5

Reorder the terms:
20 = -21 + 5 + 6y

Combine like terms: -21 + 5 = -16
20 = -16 + 6y

Solving
20 = -16 + 6y

Solving for variable 'y'.

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

Add '-6y' to each side of the equation.
20 + -6y = -16 + 6y + -6y

Combine like terms: 6y + -6y = 0
20 + -6y = -16 + 0
20 + -6y = -16

Add '-20' to each side of the equation.
20 + -20 + -6y = -16 + -20

Combine like terms: 20 + -20 = 0
0 + -6y = -16 + -20
-6y = -16 + -20

Combine like terms: -16 + -20 = -36
-6y = -36

Divide each side by '-6'.
y = 6

Simplifying
y = 6

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