Solving One Step Equations using Addition or Subtraction

Front

What is a one-step equation?

Back

A one-step equation is an equation that can be solved in a single step, typically by using addition or subtraction to isolate the variable.

Front

How do you isolate a variable in an equation?

Back

To isolate a variable, you perform the opposite operation to both sides of the equation.

Front

What is the opposite operation of addition?

Back

The opposite operation of addition is subtraction.

Front

What is the opposite operation of subtraction?

Back

The opposite operation of subtraction is addition.

Front

Solve for t: 9 + t = 56

Back

t = 47

Front

Solve for x: x - 15 = -20

Back

x = -5

Front

In the equation x + 7 = 12, what operation do you perform to isolate x?

Back

Subtract 7 from both sides.

Front

Solve for z: 12 + z = -15

Back

z = -27

Front

Solve for r: r + 18 = -27

Back

r = -45

Front

What does it mean to 'show your work' in math?

Back

'Showing your work' means to write down each step taken to solve a problem, making it clear how you arrived at the answer.