Algebra Examples

$- 2 x - y = 5 x - 2 y$

Step 1

Move all terms containing $y$ to the left side of the equation.

Tap for more steps...

Step 1.1

Add $2 y$ to both sides of the equation.

$- 2 x - y + 2 y = 5 x$

Step 1.2

Add $- y$ and $2 y$ .

$- 2 x + y = 5 x$

Step 2

Move all terms not containing $y$ to the right side of the equation.

Tap for more steps...

Step 2.1

Add $2 x$ to both sides of the equation.

$y = 5 x + 2 x$

Step 2.2

Add $5 x$ and $2 x$ .

$y = 7 x$

Step 3

To rewrite as a function of $x$ , write the equation so that $y$ is by itself on one side of the equal sign and an expression involving only $x$ is on the other side.

$f (x) = 7 x$