10y-1=3y+20

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Solution for 10y-1=3y+20 equation:


Simplifying
10y + -1 = 3y + 20

Reorder the terms:
-1 + 10y = 3y + 20

Reorder the terms:
-1 + 10y = 20 + 3y

Solving
-1 + 10y = 20 + 3y

Solving for variable 'y'.

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

Add '-3y' to each side of the equation.
-1 + 10y + -3y = 20 + 3y + -3y

Combine like terms: 10y + -3y = 7y
-1 + 7y = 20 + 3y + -3y

Combine like terms: 3y + -3y = 0
-1 + 7y = 20 + 0
-1 + 7y = 20

Add '1' to each side of the equation.
-1 + 1 + 7y = 20 + 1

Combine like terms: -1 + 1 = 0
0 + 7y = 20 + 1
7y = 20 + 1

Combine like terms: 20 + 1 = 21
7y = 21

Divide each side by '7'.
y = 3

Simplifying
y = 3

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