What is the simplest for of this equation?
8 + 2x + 3 - x = 2x + 1
What is 10 = x
100
Shirley removes 2 cards from a jar. There were originally 51 cards in the jar.
1) What mathematical function would you preform?
2) How many cards are left in the jar?
1) Subtraction
2) 49 cards
100
1) If you have x + 3x - x = 30, can you subtract 3 from each side?
2) Why or why not?
1) No.
2) 3x means 3 x's (x + x + x) not 3 + x
100
If x = 5, what is the value of y?
x + x + 3 = y
y = 13
200
Solve for x.....
x + 6 = 2x + 3
What is 3
200
If you have three x plus eight plus x equalling x plus fourteen minus two, how would you right this problem after combining like terms on each side of the equation?
What is 4x + 8 = x + 12
200
There are 5 Skittles in each box. How many Skittles are in 10 boxes?
1) What mathematical function would you use?
2) How many Skittles are in 10 boxes?
1) Division or reverse multiplication
2) 50 Skittles are in 10 boxes
200
1) If you have x + 2x + 5 = x + 19, can you subtract 2x from each side?
2) Why or why not?
1) No.
2) Only one side of the equation has 2x
200
If x = 3, what is the value of y?
3x - x + 2x - 1 = y
y = 11
300
Solve for x......
3x + 1 = x + 5
What is 2
300
1) If you have x plus 3 x minus x equals 30, how would you write this problem after combining like terms on each side of the equation?
2) What would the answer be?
1) 3x = 30
2) 10
300
Arthur went to the store 4 times last month. He buys 53 bottle caps each time he goes to the store.
1) What mathematical function would you use?
2) How many bottle caps did Arthur buy last month?
1) Multiplication
2) 212 bottle caps
300
1) If you have x + 2x - x + 7 = 4x - x + 2, can you subtract x + 2 from each side?
2) Why or why not?
1) Yes
2) Both sides have an x and a 2
300
If x = 10, what is the value of y?
y = 14 + 3x - 8
y = 36
400
Solve for x.......
x + 3x - x = 30
What is 10
400
1) If you have x plus 2x plus five equals x plus nineteen, how would you write this equation after you have simplifed each side?
2) What would the answer be?
1) 2x = 14
2) x = 7
400
There are 8 pencils in each box. How many pencils are in 49 boxes?
1) What mathematical function would you use?
2) How many pencils are in 49 boxes?
1) Division or reverse multiplication.
2) 6 pencils in 7 boxes, 7 pencils in 1 box.
400
1) If you have x + 2x - x + 7 = 4x - x + 2, can you add x to one side and subtract 2 from each side?
2) Why or why not?
1)No
2) Adding or subtracting anything to only one side will not keep the equation equal.
400
If x = 0, what is the value of y?
10x + 150 - x - 3x + 29 = y
y = 179
500
Solve for x.......
x + 2x - x + 7 = 4x - x + 2
What is 5
500
1) If you have x plus two x minus x plus seven equals four x minus x plus 2, how would you write this problem after combining like terms on each side of the equation?
2) What would the answer be?
1) 2x + 7 = 3x + 2
2) 5 = x
500
Kevin has 280 erasers stored in boxes. If the are 40 boxes, how many erasers must go in each box?
1) What mathematical function would you use?
2) How many erasers are in each box?
1) Division or reverse multiplication.
2) 7
500
1) If you have x + 2x + 14 - 5x + 2 = x + 2x - x + 7 + 4x - x + 2, can you subtract 2x + x + 7 from each side?
2) Why or why not?
1) Yes
2) Each side has a 2x, an x, and 7.
500
If x = 150, what is the value of y?
y = x - 25 + 2 + 150 - x - 13 + x - x