10y+9=100+3y

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Solution for 10y+9=100+3y equation:


Simplifying
10y + 9 = 100 + 3y

Reorder the terms:
9 + 10y = 100 + 3y

Solving
9 + 10y = 100 + 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.
9 + 10y + -3y = 100 + 3y + -3y

Combine like terms: 10y + -3y = 7y
9 + 7y = 100 + 3y + -3y

Combine like terms: 3y + -3y = 0
9 + 7y = 100 + 0
9 + 7y = 100

Add '-9' to each side of the equation.
9 + -9 + 7y = 100 + -9

Combine like terms: 9 + -9 = 0
0 + 7y = 100 + -9
7y = 100 + -9

Combine like terms: 100 + -9 = 91
7y = 91

Divide each side by '7'.
y = 13

Simplifying
y = 13

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