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 by adding a number to both sides to isolate the variable. For example, in x + 5 = 10, you subtract 5 from both sides to find x.

Front

What is a one-step subtraction equation?

Back

A one-step subtraction equation is an equation that can be solved by subtracting a number from both sides to isolate the variable. For example, in y - 3 = 7, you add 3 to both sides to find y.

Front

Solve for w: 72 = 24 + w

Back

w = 48

Front

Solve for x: x + 12 = 20

Back

x = 8

Front

Solve for n: 16 = n + 6

Back

n = 10

Front

How do you isolate a variable in the equation x + 9 = 12?

Back

Subtract 9 from both sides. The solution is x = 3.

Front

Solve for y: y - 33 = 147

Back

y = 180

Front

What is the first step to solve the equation x + 5 = 15?

Back

Subtract 5 from both sides to isolate x.

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, making it easier to solve.

Front

If you have the equation 50 = x + 20, how do you solve for x?

Back

Subtract 20 from both sides. The solution is x = 30.