# Different ways to solve equations

We have 4 ways of solving one-step equations: Adding, Substracting, multiplication and division.

If we add the same number to both sides of an equation, both sides will remain equal.

Example

$x=y$

$x+z=y+z$

If we subtract the same number from both sides of an equation, both sides will remain equal.

Example

$x=y$

$x-z=y-z$

If we divide both sides of an equation by the same number, both sides will remain equal.

Example

$x=y$

$x\div z=y\div z$

If we multiply both sides of an equation  by the same number, both sides will remain equal.

$x=y$

$x\cdot z=y\cdot z$

## Video lesson

Solve the following expression

$4x-7=\frac{x}{3}+4$