One step Addition and Subtraction equations

Front

What is a one-step addition equation?

Back

A one-step addition equation is an equation that can be solved in one step by adding a number to both sides to isolate the variable.

Front

What is a one-step subtraction equation?

Back

A one-step subtraction equation is an equation that can be solved in one step by subtracting a number from both sides to isolate the variable.

Front

Solve for r: r + 20 = 27

Back

r = 7

Front

What is the inverse operation of addition?

Back

Subtraction

Front

What is the inverse operation of subtraction?

Back

Addition

Front

Solve for c: 8 = c - 4

Back

c = 12

Front

Solve for s: s - 22 = 50

Back

s = 72

Front

Solve for x: x + 2 = 8

Back

x = 6

Front

What is the first step to solve r + 20 = 27?

Back

Subtract 20 from both sides.

Front

What does it mean to isolate a variable?

Back

To isolate a variable means to get the variable alone on one side of the equation.