Solving equations

What do you have to do to solve the equation x + 15 = 43?

• Add 15 to both sides
• Subtract 15 from both sides
• Multiply 15 times both sides
• Divide both sides by 15

What do you have to do to solve the equation x - 7.80 = 15.60?

• Add 7.80 to both sides
• Subtract 7.80 from both sides
• Multiply 7.80 times both sides
• Divide both sides by 7.80

What do you have to do to solve the equation 0.32x = 64?

• Add 0.32 to both sides
• Subtract 0.32 from both sides
• Multiply 0.32 times both sides
• Divide both sides by 0.32

What do you have to do to solve the equation x/8 = 15?

• Add 8 to both sides
• Subtract 8 from both sides
• Multiply 8 times both sides
• Divide both sides by 8

What is the solution to x + 16.5 = 53.1?

• 69.6
• 3.22
• 36.6
• 36.4

What is the solution to 1.2b = 14.4?

• 15.6
• 13.2
• 1.2
• 12

What is the solution to x - 3/4 = 1/2?

• 3/8
• 5/4
• 4/6
• 1/4

What is the solution to x/5 = 1.6?

• 80
• 8
• 1.1
• 2.1

Dr. Schlatter bought 5 DVD's for a total price of $72.00. If each DVD was priced the same, what equation can be solved to find the price p?

• p + 5 = 72
• 5p = 72
• p/5 = 72
• 72p = 5

Stacey ran 800 meters in 250 seconds. What equation can be solved to find her speed v (assuming it was constant)?

• 250v = 800
• 800v = 250
• v + 250 = 800
• v + 800 = 250