=0.8Y-(100+0.15Y)-0.15Y

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Solution for =0.8Y-(100+0.15Y)-0.15Y equation: 


Simplifying
0 = 0.8Y + -1(100 + 0.15Y) + -0.15Y
0 = 0.8Y + (100 * -1 + 0.15Y * -1) + -0.15Y
0 = 0.8Y + (-100 + -0.15Y) + -0.15Y

Reorder the terms:
0 = -100 + 0.8Y + -0.15Y + -0.15Y

Combine like terms: 0.8Y + -0.15Y = 0.65Y
0 = -100 + 0.65Y + -0.15Y

Combine like terms: 0.65Y + -0.15Y = 0.5Y
0 = -100 + 0.5Y

Solving
0 = -100 + 0.5Y

Solving for variable 'Y'.

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

Add '-0.5Y' to each side of the equation.
0 + -0.5Y = -100 + 0.5Y + -0.5Y
Remove the zero:
-0.5Y = -100 + 0.5Y + -0.5Y

Combine like terms: 0.5Y + -0.5Y = 0.0
-0.5Y = -100 + 0.0
-0.5Y = -100

Divide each side by '-0.5'.
Y = 200

Simplifying
Y = 200

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