4y-2*-1=20

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Solution for 4y-2*-1=20 equation: 


Simplifying
4y + -2 * -1 = 20

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

Reorder the terms:
2 + 4y = 20

Solving
2 + 4y = 20

Solving for variable 'y'.

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

Add '-2' to each side of the equation.
2 + -2 + 4y = 20 + -2

Combine like terms: 2 + -2 = 0
0 + 4y = 20 + -2
4y = 20 + -2

Combine like terms: 20 + -2 = 18
4y = 18

Divide each side by '4'.
y = 4.5

Simplifying
y = 4.5

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