4y-4-(-y)-9y=4

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Solution for 4y-4-(-y)-9y=4 equation:


Simplifying
4y + -4 + -1(-1y) + -9y = 4

Remove parenthesis around (-1y)
4y + -4 + -1 * -1y + -9y = 4

Multiply -1 * -1
4y + -4 + 1y + -9y = 4

Reorder the terms:
-4 + 4y + 1y + -9y = 4

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

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

Solving
-4 + -4y = 4

Solving for variable 'y'.

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

Add '4' to each side of the equation.
-4 + 4 + -4y = 4 + 4

Combine like terms: -4 + 4 = 0
0 + -4y = 4 + 4
-4y = 4 + 4

Combine like terms: 4 + 4 = 8
-4y = 8

Divide each side by '-4'.
y = -2

Simplifying
y = -2

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