Solve 8t-r=12t

$$8 t - r = 12 t$$

Solve for r

$$r=-4t$$

Steps for Solving Linear Equation

Subtract 8t from both sides.

$$-r=12t-8t$$

Combine 12t and -8t to get 4t.

$$-r=4t$$

Divide both sides by -1.

$$\frac{-r}{-1}=\frac{4t}{-1}$$

Dividing by -1 undoes the multiplication by -1.

$$r=\frac{4t}{-1}$$

Divide 4t by -1.

$$r=-4t$$

Solve for t

$$t=-\frac{r}{4}$$

Steps for Solving Linear Equation

Subtract 12t from both sides.

$$8t-r-12t=0$$

Combine 8t and -12t to get -4t.

$$-4t-r=0$$

Add r to both sides. Anything plus zero gives itself.

$$-4t=r$$

Divide both sides by -4.

$$\frac{-4t}{-4}=\frac{r}{-4}$$

Dividing by -4 undoes the multiplication by -4.

$$t=\frac{r}{-4}$$

Divide r by -4.

$$t=-\frac{r}{4}$$