-2(7-2Y)=9

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Solution for -2(7-2Y)=9 equation: 


Simplifying
-2(7 + -2Y) = 9
(7 * -2 + -2Y * -2) = 9
(-14 + 4Y) = 9

Solving
-14 + 4Y = 9

Solving for variable 'Y'.

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

Add '14' to each side of the equation.
-14 + 14 + 4Y = 9 + 14

Combine like terms: -14 + 14 = 0
0 + 4Y = 9 + 14
4Y = 9 + 14

Combine like terms: 9 + 14 = 23
4Y = 23

Divide each side by '4'.
Y = 5.75

Simplifying
Y = 5.75

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