6y-(3y+9)=7

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Solution for 6y-(3y+9)=7 equation:


Simplifying
6y + -1(3y + 9) = 7

Reorder the terms:
6y + -1(9 + 3y) = 7
6y + (9 * -1 + 3y * -1) = 7
6y + (-9 + -3y) = 7

Reorder the terms:
-9 + 6y + -3y = 7

Combine like terms: 6y + -3y = 3y
-9 + 3y = 7

Solving
-9 + 3y = 7

Solving for variable 'y'.

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

Add '9' to each side of the equation.
-9 + 9 + 3y = 7 + 9

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

Combine like terms: 7 + 9 = 16
3y = 16

Divide each side by '3'.
y = 5.333333333

Simplifying
y = 5.333333333

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