10y-100=-21+y

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Solution for 10y-100=-21+y equation:


Simplifying
10y + -100 = -21 + y

Reorder the terms:
-100 + 10y = -21 + y

Solving
-100 + 10y = -21 + y

Solving for variable 'y'.

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

Add '-1y' to each side of the equation.
-100 + 10y + -1y = -21 + y + -1y

Combine like terms: 10y + -1y = 9y
-100 + 9y = -21 + y + -1y

Combine like terms: y + -1y = 0
-100 + 9y = -21 + 0
-100 + 9y = -21

Add '100' to each side of the equation.
-100 + 100 + 9y = -21 + 100

Combine like terms: -100 + 100 = 0
0 + 9y = -21 + 100
9y = -21 + 100

Combine like terms: -21 + 100 = 79
9y = 79

Divide each side by '9'.
y = 8.777777778

Simplifying
y = 8.777777778

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