Y(-2)=5(-2)(2)-7

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Solution for Y(-2)=5(-2)(2)-7 equation: 


Simplifying
Y(-2) = 5(-2)(2) + -7

Reorder the terms for easier multiplication:
-2Y = 5(-2)(2) + -7

Multiply 5 * -2
-2Y = -10 * 2 + -7

Multiply -10 * 2
-2Y = -20 + -7

Combine like terms: -20 + -7 = -27
-2Y = -27

Solving
-2Y = -27

Solving for variable 'Y'.

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

Divide each side by '-2'.
Y = 13.5

Simplifying
Y = 13.5

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