20+(-1y)2+4y=56

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Solution for 20+(-1y)2+4y=56 equation:


Simplifying
20 + (-1y) * 2 + 4y = 56

Remove parenthesis around (-1y)
20 + -1y * 2 + 4y = 56

Reorder the terms for easier multiplication:
20 + -1 * 2y + 4y = 56

Multiply -1 * 2
20 + -2y + 4y = 56

Combine like terms: -2y + 4y = 2y
20 + 2y = 56

Solving
20 + 2y = 56

Solving for variable 'y'.

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

Add '-20' to each side of the equation.
20 + -20 + 2y = 56 + -20

Combine like terms: 20 + -20 = 0
0 + 2y = 56 + -20
2y = 56 + -20

Combine like terms: 56 + -20 = 36
2y = 36

Divide each side by '2'.
y = 18

Simplifying
y = 18

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