one step equations

In the equation

x + 7 = 12

7 is being added to the variable, x. What should you do to isolate the variable?

• Subtract 7 from both sides. The solution is x = 5.

• Add 7 to both sides.

  The solution is x = 19.

The variable, k, is being divided by 11. How should you show your work to isolate the variable?

• Divide both sides by 11

• Multiply both sides by 11.

• Add 11 to both sides.

• Subtract 11 to both sides.

Solve the equation:

4p = 16

Remember: the opposite of multiplication is division.

• p = 12

• p = -12

• p = -4

• p = 4

Solve for x

X is being divided by 5.

Remember: the opposite of division is multiplication

• x = 20

• x = 7

• x = 10

• x = 3

x + 12 = 20

Remember: The opposite of addition is subtraction

• x = 32

• x = -32

• x = 8

• x = -8

17 = x + 3

• x = 20
• x = 14
• x = 13
• x = 19

Tags

CCSS.6.EE.B.7

4 + b = 30

• -34
• 34
• -26
• 26

Tags

CCSS.6.EE.B.7

Solve for x

10x = 90

10 and x are being multiplied.

Remember: the opposite of multiplication is division

• x = 80

• x = 100

• x = 10

• x = 9

What is the inverse operation of division?

• Division
• Multiplication
• Addition
• Subtraction

Tags

CCSS.4.NBT.B.6

Which equation has x = 5 as the solution?

Hint: substitute(plug in) 5 for x

• x + 15 = 10

• 2x = 5

• 2x = 10