20-3y-7=-6y-20

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Solution for 20-3y-7=-6y-20 equation:


Simplifying
20 + -3y + -7 = -6y + -20

Reorder the terms:
20 + -7 + -3y = -6y + -20

Combine like terms: 20 + -7 = 13
13 + -3y = -6y + -20

Reorder the terms:
13 + -3y = -20 + -6y

Solving
13 + -3y = -20 + -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.
13 + -3y + 6y = -20 + -6y + 6y

Combine like terms: -3y + 6y = 3y
13 + 3y = -20 + -6y + 6y

Combine like terms: -6y + 6y = 0
13 + 3y = -20 + 0
13 + 3y = -20

Add '-13' to each side of the equation.
13 + -13 + 3y = -20 + -13

Combine like terms: 13 + -13 = 0
0 + 3y = -20 + -13
3y = -20 + -13

Combine like terms: -20 + -13 = -33
3y = -33

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

Simplifying
y = -11

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