(7Y-7Y+8)-(2Y-7Y+9)=

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Solution for (7Y-7Y+8)-(2Y-7Y+9)= equation:


Simplifying
(7Y + -7Y + 8) + -1(2Y + -7Y + 9) = 0

Reorder the terms:
(8 + 7Y + -7Y) + -1(2Y + -7Y + 9) = 0

Combine like terms: 7Y + -7Y = 0
(8 + 0) + -1(2Y + -7Y + 9) = 0
(8) + -1(2Y + -7Y + 9) = 0
8 + -1(2Y + -7Y + 9) = 0

Reorder the terms:
8 + -1(9 + 2Y + -7Y) = 0

Combine like terms: 2Y + -7Y = -5Y
8 + -1(9 + -5Y) = 0
8 + (9 * -1 + -5Y * -1) = 0
8 + (-9 + 5Y) = 0

Combine like terms: 8 + -9 = -1
-1 + 5Y = 0

Solving
-1 + 5Y = 0

Solving for variable 'Y'.

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

Add '1' to each side of the equation.
-1 + 1 + 5Y = 0 + 1

Combine like terms: -1 + 1 = 0
0 + 5Y = 0 + 1
5Y = 0 + 1

Combine like terms: 0 + 1 = 1
5Y = 1

Divide each side by '5'.
Y = 0.2

Simplifying
Y = 0.2

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