Solve for X
8x = 64
What property of equality is used if I subtract the same number from both sides?
Subtraction Property of Equality
Clive is 19 years younger than Josh. Clive is 34. Write and solve a subtraction equation to find Josh's age, y.
y - 19 = 34
y = 53
Molly bought 13 oranges for $7.15. Each orange was the same amount. Write and solve an equation to find m, the cost of each orange.
Amount of orange x price for one orange = total price
$0.55 for one orange
7x = 77
11
If I have 6x = 12 and I divided 6x by 6 and divided 12 by 2, would I still have an equivalent equation? Why?
No, because you did not do the same thing on both sides.
Andy had some basketball cards. After he bought 12 more, he had 48 cards. How many did Andy have to start?
n + 12 = 48
n = 36
2448 / 48 = x
51
If 8 - 1 = 7, does 8 - 1 - 2 = 7 - 3? Why or Why not?
No, I subtracted 2 from one side and 3 from the other
Juan charged the same amount for each painting. How much did he charge for one painting if he sold 3 for $45? Write and solve
3x = 45
x = $15
12x = 19.2
1.6
If 3x = 36, Would 3x - 15 = 36 - 12 - 3
Yes, I subtracted 15 from both sides
3/8n = 3/4
n=2
17.9 - x = 12.8
5.1
If 4x + 12 = 52, what property of equality would I use to solve this problem? (There's two that you should use)
Theresa picked the same number of tomatoes each day. In 4 days she picked 52 tomatoes. How many did she pick each day? Write and Solve
4n = 52
n = 13