Literal Equations

Front

Solve -2 = 4r + s for s.

Back

s = -2 - 4r

Front

Solve pV = nRT for R.

Back

R = pV/nT

Front

Solve D = rt for t.

Back

t = D/r

Front

What should we do first to solve for x in y = mx + b?

Back

Subtract

Front

Solve y = mx + b for b.

Back

b = y - mx

Front

What is a literal equation?

Back

An equation that contains two or more variables.

Front

How do you isolate a variable in an equation?

Back

Use inverse operations to move other terms to the opposite side.

Front

What is the first step in solving 3x + 5 = 20 for x?

Back

Subtract 5 from both sides.

Front

If 2x - 4 = 10, what is x?

Back

x = 7.

Front

What does it mean to solve for a variable?

Back

To express that variable in terms of other variables.