Shree writes the equation x + 7 = 28. What should Shree do to find the value of x?
Subtract 7 from each side of the equation.
Oops!
Check
Okay!
Check
15
m - 28 = 21
m = 49
Oops!
Check
Okay!
Check
15
Explain how to solve for n in the equation n + 25 = 233.
Subtract 25 from both sides; n = 208
Oops!
Check
Okay!
Check
15
25 + y = 42
y = 17
Oops!
Check
Okay!
Check
25
Krystal says that you need to add to solve the subtraction equation y - 11 = 52. Is Krystal correct? Explain.
Yes; Addition is the inverse of subtraction. To find the value of y, add 11 to each side of the equation.
Oops!
Check
Okay!
Check
boom
Lose 50 points!
Oops!
gift
Win 25 points!
Okay!
shark
Other team loses 25 points!
Okay!
thief
Give points!
5
10
15
20
25
15
What is the solution of 56 = k - 42?
Oops!
Show
Check
Okay!
Check
15
a - 51 = 12
a = 63
Oops!
Check
Okay!
Check
25
This year, a rancher counted 225 horses on the range. This count is 22 fewer than last year. How many horses did the rancher count last year? Let h be the number of horses counted last year. Solve h - 22 = 225 to find the number of horses c