Year 7 Equations

Solve the equation: 
x + 7 = 12

• x = 5
• x = 19
• x = -5
• x = 84

Solve the equation:
4p = 16

• p = 12
• p = -12
• p = -4
• p = 4

Solve the equation:
y - 14 = 66

• y = 80
• y = 52
• y = 79
• Answer Not Given

In the equation
x + 7 = 12
7 is being added to the variable, x. How should you show your work to isolate the variable and solve the equation? 

• Subtract 7 from both sides. The solution is x = 5.
• Add 7 to both sides.
  The solution is x = 19.
• Multiply both sides by 7. The solution is x = 84.
• Divide both sides by 7. The solution is 12/7.

In the equation
4p = 20
 the variable, p, is being multiplied by 4. How should you show your work to isolate the variable and solve the equation?

• Multiply both sides by 4.
  The solution is x = 80.
• Subtract 4 from both sides. 
  The solution is p = 16.
• Add 4 to both sides. The solution is p = 24.
• Divide both sides by 4. The solution is p = 5.

x + 12 = 20

• x = 32
• x = -32
• x = 8
• x = -8

Tags

CCSS.6.EE.B.7

17 = x + 3

• x = 20
• x = 14
• x = 13
• x = 19

Tags

CCSS.6.EE.B.7

10x = 90

• x = 80
• x = 100
• x = 10
• x = 9

Tags

CCSS.6.EE.B.7

Solve the equation
3x = 27. 

• x = 24
• x = 81
• x = 9
• x = 3

Tags

CCSS.6.EE.B.7

8 = x - 1

• x = 8
• x = 1
• x = 7
• x = 9

Tags

CCSS.6.EE.B.7