Solve V=10(t-1)+20

$$V = 10 ( t - 1 ) + 20$$

Solve for V

$$V=10\left(t+1\right)$$

Solution Steps

Use the distributive property to multiply 10 by t-1.

$$V=10t-10+20$$

Add -10 and 20 to get 10.

$$V=10t+10$$

Solve for t

$$t=\frac{V-10}{10}$$

Steps for Solving Linear Equation

Use the distributive property to multiply 10 by t-1.

$$V=10t-10+20$$

Add -10 and 20 to get 10.

$$V=10t+10$$

Swap sides so that all variable terms are on the left hand side.

$$10t+10=V$$

Subtract 10 from both sides.

$$10t=V-10$$

Divide both sides by 10.

$$\frac{10t}{10}=\frac{V-10}{10}$$

Dividing by 10 undoes the multiplication by 10.

$$t=\frac{V-10}{10}$$

Divide V-10 by 10.

$$t=\frac{V}{10}-1$$