Solve for x₂ m=(x_1+x_2)/2

$m = \frac{x_{1} + x_{2}}{2}$

Rewrite the equation as $\frac{x_{1} + x_{2}}{2} = m$ .

$\frac{x_{1} + x_{2}}{2} = m$

Multiply both sides of the equation by $2$ .

$2 \frac{x_{1} + x_{2}}{2} = 2 m$

Simplify the left side.

Cancel the common factor of $2$ .

Cancel the common factor.

$2 \frac{x_{1} + x_{2}}{2} = 2 m$

Rewrite the expression.

$x_{1} + x_{2} = 2 m$

Subtract $x_{1}$ from both sides of the equation.

$x_{2} = 2 m - x_{1}$