Equations

x + 12 = 20

• x = 32

• x = -32

• x = 8

• x = -8

Solve for x:

• x = 20

• x = 7

• x = 10

• x = 3

x + 17.6 = 1.9

• 19.5

• 18.5

• 20.5

• 21.5

What do we call a number sentence that has an equal sign?

• Expression

• Solved

• Equation

• Algebraic

2n=100

• N=10

• N=50

• N=20

x - 32 = 49

• x = 17

• x = 71

• x = 81

• x = 49

Sally bought three candy bars for a total of $18.00. How much did each candy bar cost? Write an equation to solve this problem. Use c as your variable.

• 18c=6

• c + 6= 18

• c +18 = 6

• 3c=18

Working together, Joy and Steve collected 53 pounds of aluminum cans for recycling. If Joy collected 20 pounds, find the number of pounds, x, that Steve collected. Using x as your variable write an equation to solve.

• 20x=53

• x-20=53

• x-53=20

• x+20=53

Cornelius is saving money to buy a jacket that costs $47. He has already saved $25. Write  an equation to find how much more money Cornelius needs to save.

• 25 + m = 47

• m - 25 = 47

• 25m = 47

• m/25=47

Virginia’s mother gave her marbles for her birthday. Virginia lost 13 of them. If she has 24 marbles left, write an equation to find how many her mother gave her.

• m + 13 = 24 

• m – 13 = 24

• 13m = 24

• m/13 = 24