One Step Equations

What is the solution for x + 9 = 21

• 10
• 12
• 11
• 13

Solve for b
2b = -16

• 8
• 4
• -8
• 3

• x = 20
• x = 7
• x = 10
• x = 3

m+13=21

• m=34
• m=8
• m=273
• m=6

Solve for y:
y - 7 = 10

• 17
• -3
• 3
• -17

k+8=15

• k=23
• k=10
• k=7
• k=11

What equation is modeled here?

• x - 6 = 13
• x + 6 = 12
• x + 6 = 13
• x6 = 13

Which choice describes the step needed to isolate the variable? (Tap outside of the gray box to see the equation.)

• Divide both sides by 11
• Multiply both sides by 11.
• Add 11 to both sides.
• Subtract 11 to both sides.

y - 4.6 = 12

• 16.6
• 5.8
• 7.4
• Answer not Given

Solve for x:

• x = 20
• x = 7
• x = 10
• x = 3