9y-(y+4)=18

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Solution for 9y-(y+4)=18 equation:


Simplifying
9y + -1(y + 4) = 18

Reorder the terms:
9y + -1(4 + y) = 18
9y + (4 * -1 + y * -1) = 18
9y + (-4 + -1y) = 18

Reorder the terms:
-4 + 9y + -1y = 18

Combine like terms: 9y + -1y = 8y
-4 + 8y = 18

Solving
-4 + 8y = 18

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 + 8y = 18 + 4

Combine like terms: -4 + 4 = 0
0 + 8y = 18 + 4
8y = 18 + 4

Combine like terms: 18 + 4 = 22
8y = 22

Divide each side by '8'.
y = 2.75

Simplifying
y = 2.75

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