Question

7x - 2y = 1
2y = x - 1
Solution as (x,y)
I am really confused please help!!!!

Answer 1

1) y = − 1 2 + 7 x 2

2) x = 2 y + 1

Explanation:

Subtract 7 x from both sides of the equation. − 2 y = 1 − 7 x Divide each term by − 2 and simplify.

y = − 1 2 + 7 x 2

Solve for x by simplifying both sides of the equation, then isolating the variable. x = 2 y + 1

Answer 2

Explanation:

Simplifying

7x + -2y = 1

Solving

7x + -2y = 1

Solving for variable 'x'.

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

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

7x + -2y + 2y = 1 + 2y

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

7x + 0 = 1 + 2y

7x = 1 + 2y

Divide each side by '7'.

x = 0.1428571429 + 0.2857142857y

Simplifying

x = 0.1428571429 + 0.2857142857y

///////////////////////

Simplifying

2y = x + -1

Reorder the terms:

2y = -1 + x

Solving

2y = -1 + x

Solving for variable 'y'.

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

Divide each side by '2'.

y = -0.5 + 0.5x

Simplifying

y = -0.5 + 0.5x