-9-2(Y-1)=-10

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Solution for -9-2(Y-1)=-10 equation: 


Simplifying
-9 + -2(Y + -1) = -10

Reorder the terms:
-9 + -2(-1 + Y) = -10
-9 + (-1 * -2 + Y * -2) = -10
-9 + (2 + -2Y) = -10

Combine like terms: -9 + 2 = -7
-7 + -2Y = -10

Solving
-7 + -2Y = -10

Solving for variable 'Y'.

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

Add '7' to each side of the equation.
-7 + 7 + -2Y = -10 + 7

Combine like terms: -7 + 7 = 0
0 + -2Y = -10 + 7
-2Y = -10 + 7

Combine like terms: -10 + 7 = -3
-2Y = -3

Divide each side by '-2'.
Y = 1.5

Simplifying
Y = 1.5

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