100-2x-y=40

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Solution for 100-2x-y=40 equation:


Simplifying
100 + -2x + -1y = 40

Solving
100 + -2x + -1y = 40

Solving for variable 'x'.

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

Add '-100' to each side of the equation.
100 + -2x + -100 + -1y = 40 + -100

Reorder the terms:
100 + -100 + -2x + -1y = 40 + -100

Combine like terms: 100 + -100 = 0
0 + -2x + -1y = 40 + -100
-2x + -1y = 40 + -100

Combine like terms: 40 + -100 = -60
-2x + -1y = -60

Add 'y' to each side of the equation.
-2x + -1y + y = -60 + y

Combine like terms: -1y + y = 0
-2x + 0 = -60 + y
-2x = -60 + y

Divide each side by '-2'.
x = 30 + -0.5y

Simplifying
x = 30 + -0.5y

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