10y+7-y=70-10y+y*1-9

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Solution for 10y+7-y=70-10y+y*1-9 equation:


Simplifying
10y + 7 + -1y = 70 + -10y + y * 1 + -9

Reorder the terms:
7 + 10y + -1y = 70 + -10y + y * 1 + -9

Combine like terms: 10y + -1y = 9y
7 + 9y = 70 + -10y + y * 1 + -9

Reorder the terms for easier multiplication:
7 + 9y = 70 + -10y + 1y + -9

Reorder the terms:
7 + 9y = 70 + -9 + -10y + 1y

Combine like terms: 70 + -9 = 61
7 + 9y = 61 + -10y + 1y

Combine like terms: -10y + 1y = -9y
7 + 9y = 61 + -9y

Solving
7 + 9y = 61 + -9y

Solving for variable 'y'.

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

Add '9y' to each side of the equation.
7 + 9y + 9y = 61 + -9y + 9y

Combine like terms: 9y + 9y = 18y
7 + 18y = 61 + -9y + 9y

Combine like terms: -9y + 9y = 0
7 + 18y = 61 + 0
7 + 18y = 61

Add '-7' to each side of the equation.
7 + -7 + 18y = 61 + -7

Combine like terms: 7 + -7 = 0
0 + 18y = 61 + -7
18y = 61 + -7

Combine like terms: 61 + -7 = 54
18y = 54

Divide each side by '18'.
y = 3

Simplifying
y = 3

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