1-x-2y=3

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Solution for 1-x-2y=3 equation:


Simplifying
1 + -1x + -2y = 3

Solving
1 + -1x + -2y = 3

Solving for variable 'x'.

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

Add '-1' to each side of the equation.
1 + -1x + -1 + -2y = 3 + -1

Reorder the terms:
1 + -1 + -1x + -2y = 3 + -1

Combine like terms: 1 + -1 = 0
0 + -1x + -2y = 3 + -1
-1x + -2y = 3 + -1

Combine like terms: 3 + -1 = 2
-1x + -2y = 2

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

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

Divide each side by '-1'.
x = -2 + -2y

Simplifying
x = -2 + -2y

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