Question

x+2y-400=0

find x and y ​

Answer 1

Step-by-step explanation:

x + 2y - 400 = 0

x + 2y - 400 = 0x + 2y = 400

x + 2y - 400 = 0x + 2y = 400x + y = 200

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Answer 2

Simplifying

2x + -2y + -400 = 0

Reorder the terms:

-400 + 2x + -2y = 0

Solving

-400 + 2x + -2y = 0

Solving for variable 'x'.

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

Add '400' to each side of the equation.

-400 + 2x + 400 + -2y = 0 + 400

Reorder the terms:

-400 + 400 + 2x + -2y = 0 + 400

Combine like terms: -400 + 400 = 0

0 + 2x + -2y = 0 + 400

2x + -2y = 0 + 400

Combine like terms: 0 + 400 = 400

2x + -2y = 400

Add '2y' to each side of the equation.

2x + -2y + 2y = 400 + 2y

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

2x + 0 = 400 + 2y

2x = 400 + 2y

Divide each side by '2'.

x = 200 + y

Simplifying

x = 200 + y