(y-5)-(y+4)=10y

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Solution for (y-5)-(y+4)=10y equation:


Simplifying
(y + -5) + -1(y + 4) = 10y

Reorder the terms:
(-5 + y) + -1(y + 4) = 10y

Remove parenthesis around (-5 + y)
-5 + y + -1(y + 4) = 10y

Reorder the terms:
-5 + y + -1(4 + y) = 10y
-5 + y + (4 * -1 + y * -1) = 10y
-5 + y + (-4 + -1y) = 10y

Reorder the terms:
-5 + -4 + y + -1y = 10y

Combine like terms: -5 + -4 = -9
-9 + y + -1y = 10y

Combine like terms: y + -1y = 0
-9 + 0 = 10y
-9 = 10y

Solving
-9 = 10y

Solving for variable 'y'.

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

Add '-10y' to each side of the equation.
-9 + -10y = 10y + -10y

Combine like terms: 10y + -10y = 0
-9 + -10y = 0

Add '9' to each side of the equation.
-9 + 9 + -10y = 0 + 9

Combine like terms: -9 + 9 = 0
0 + -10y = 0 + 9
-10y = 0 + 9

Combine like terms: 0 + 9 = 9
-10y = 9

Divide each side by '-10'.
y = -0.9

Simplifying
y = -0.9

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