Inverse Operations and Solving Equations

Front

What are inverse operations?

Back

Inverse operations are pairs of mathematical operations that undo each other. For example, addition and subtraction are inverse operations, as are multiplication and division.

Front

How do you solve an equation?

Back

To solve an equation, isolate the variable on one side of the equation by performing inverse operations on both sides.

Front

Write the equation for: You have a stack with some baseball cards. You gave 21 cards to a friend and you now have 9 left over. How many cards(c) did you start with?

Back

c - 21 = 9

Front

Solve the equation: 7.4 = n - 2.6

Back

n = 10

Front

Solve the equation: 86 + y = 99

Back

y = 13

Front

Solve the equation: x + 1.6 = 0.8

Back

x = -0.8

Front

Back

Front

What is the first step in solving the equation c - 21 = 9?

Back

Add 21 to both sides of the equation.

Front

What is the purpose of using inverse operations in solving equations?

Back

Inverse operations help to isolate the variable, making it easier to find its value.

Front

If you have the equation n + 5 = 12, what is n?

Back

n = 7