Solve for x -10=x-21

$- 10 = x - 21$

Step 1

Rewrite the equation as $x - 21 = - 10$ .

$x - 21 = - 10$

Step 2

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

Add $21$ to both sides of the equation.

$x = - 10 + 21$

Add $- 10$ and $21$ .

$x = 11$