30-4y=20

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Solution for 30-4y=20 equation:


Simplifying
30 + -4y = 20

Solving
30 + -4y = 20

Solving for variable 'y'.

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

Add '-30' to each side of the equation.
30 + -30 + -4y = 20 + -30

Combine like terms: 30 + -30 = 0
0 + -4y = 20 + -30
-4y = 20 + -30

Combine like terms: 20 + -30 = -10
-4y = -10

Divide each side by '-4'.
y = 2.5

Simplifying
y = 2.5

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