2 Step Equations

Front

What is a two-step equation?

Back

A two-step equation is an algebraic equation that requires two operations to solve for the variable.

Front

How do you isolate a variable in a two-step equation?

Back

To isolate a variable, perform the inverse operations in reverse order: first undo addition or subtraction, then undo multiplication or division.

Front

Solve for x: 2x + 3 = 11

Back

x = 4

Front

Is 5 a solution for 3x + 4 = 19?

Back

Yes, substituting x = 5 gives 3(5) + 4 = 19.

Front

Solve for b: 3b + 9 = 10

Back

b = 1/3

Front

Solve for y: 2y - 3 = 1

Back

y = 2

Front

Solve for x: 4x - 5 = 11

Back

x = 4

Front

Solve for f: 84 = 39 + 15f

Back

f = 3

Front

What is the first step to solve the equation 3x + 4 = 19?

Back

Subtract 4 from both sides to get 3x = 15.

Front

What does it mean if a number is a solution to an equation?

Back

It means that when the number is substituted for the variable, the equation holds true.