Literal Equations

Front

What is a literal equation?

Back

A literal equation is an equation that contains two or more variables. It is often solved for one variable in terms of the others.

Front

How do you isolate a variable in a literal equation?

Back

To isolate a variable, you perform inverse operations to move other terms to the opposite side of the equation.

Front

Solve for b: y = mx + b

Back

b = y - mx

Front

What is the first step to solve for y in Ax + By = C?

Back

Subtract Ax from each side.

Front

Solve for A: A - B = C

Back

A = C + B

Front

What is the first step to solve for P in the formula P = rt?

Back

Divide each side by t.

Front

Solve for r: P = rt

Back

r = P/t

Front

What does it mean to rearrange an equation?

Back

Rearranging an equation means changing the equation's form to isolate a specific variable.

Front

Solve for x: 3x + 5 = 20

Back

x = (20 - 5)/3 = 5

Front

What is the first step to solve for x in 2x - 4 = 10?

Back

Add 4 to both sides.