Solving Linear Equations with Variables on Both Sides

What is the inverse operation of addition?

• Multiplication

• Subtraction

• Division

• Square Root

Answer explanation

Inverse operations undo or reverse the effect of another operation.

For example, if you start with 7 and add 3 you get 10. Then if you subtract 3 you get back to 7. Subtracting 3 undid adding 3, therefore subtraction is the inverse operation of addition.

What is the inverse operation of multiplication?

• Addition

• Subtraction

• Division

• Square Root

Answer explanation

Inverse operations undo or reverse the effect of another operation.

For example, if you start with 3 and multiply by 4 you get 12. Then if you divide 12 by 4 you get back to 3. Dividing by 4 undid multiplying by 4, therefore division is the inverse operation of multiplication.

What is the inverse operation of subtraction?

• Addition

• Multiplication

• Division

• Square Root

Answer explanation

Inverse operations undo or reverse the effect of another operation.

For example, if you start with 15 and subtract 6 you get 9. Then if you add 6 you get back to 15. Adding 6 undid subtracting 6, therefore addition is the inverse operation of subtraction.

What is the inverse operation of division?

• Addition

• Square Root

• Subtraction

• Multiplication

Answer explanation

Inverse operations undo or reverse the effect of another operation.

For example, if you start with 20 and divide by 5 you get 4. Then if you multiply 4 by 5 you get back to 20. multiplying by 5 undid dividing by 5, therefore multiplication is the inverse operation of division.

• x = 2

• x = -3

• x = 2

• x = 8

• constant

• variable

• coefficient

• answer

Answer explanation

A constant is a number without a variable. A constant has a known, fixed value - it remains constant.

Simplify:

8b+3b

• 11b

• 5b

• b=11

• b=5

• constant

• coefficient

• answer

• variable

Answer explanation

A variable is a symbol we use to represent a value we don't know yet. A variable can be one value or many.