Equations and Substitution

What is the solution for x + 9 = 21

• 10
• 12
• 11
• 13

Solve the equation for x: 2x + 4 = 14

• 2
• x = 5
• 5
• 2x

Solve for y: 3y = -15

• -5
• 5
• -3
• 3

Solve for x: 4x + 6 = 6

• 15
• -5
• x = 5
• 0

Solve for y: 2y -2 = 4

• 3
• 2
• 1
• -1

Solve for y: 12 - y = 5

• 3
• -3
• 7
• -7

Solve for x: 3(2x + 3) = 27

• 6
• 9
• 18
• 3

Tags

CCSS.7.EE.B.4A

Solve for x:
2x = 14

• 14
• y = 7
• 7
• x = -7

Solve for y:
-3y= 15

• -5
• 5
• 3
• -3

In PEMDAS, these two things are on the same level.

• Parenthesis and Exponents
• Multiplication and Addition
• Subtraction and Addition
• x and x²