Make
What operation is represented in the following expression?
3x
multiplication
3 times x
What operation is represented in the following expression?
x/5
Division.
x divided by 5.
Tell which given value, if any, is the solution of the equation: 8c=64
C= 6, 7, 8, 9
c = 8
Tell which given value, if any, is the solution of the equation: 14 = u/6
u= 78, 81, 84, 90
u= 84
k = 11.37
If 10 x 3 = 30, does 10 x 3 + 4 = 30 + 5?
No, a different number is being added to both sides.
If 8n = 180, does 8n / 8 = 180/8.
Yes, each side is divided by the same number.
30 = m - 18
m = 48
If 12 - 2 = 10, does 12 - 2 - 3 = 10 - 2?
No, a different number is subtracted from both sides.
12.85 = x - 4.34
x = 17.19
r + 82 = 97
r = 15
If d / 3 = 10, does d / 3 + 3 = 10 + 3?
150 = e + 42
e = 108
Sherry writes the equation x + 7 = 28. What should Sherry do to find the value of x?
Sherry should subtract both sides of the equation by 7.
15.95 = 3.19n
n = 5
180 = g/12
g = 2,160
7s = 245
s = 35
Anthony walked 8.9 miles of his 13.5-mile goal for this week. Use the equation m + 8.9 = 13.5 to find which path Anthony should walk so that he meets his goal for the week.
Meadow Path- 3.2 miles
Circle Path- 4.2 miles
Oak Tree Path- 4.6 miles
Oak Tree Path: m = 4.6
4.6 + 8.9 = 13.5
A volunteer made m muffins for a bake sale. After selling 28 muffins, 21 muffins remained. The equation m - 28 = 21 represents the situation.
What is the first step in writing an equivalent equation to solve m - 28 = 21?
Add 28 to each side of the equation.
t - 2/3 = 5/6
t = 1 1/2
s + 1/4 = 12 1/2
s = 12 1/4
2/7q = 3
q = 10 1/2
2 2/3 + y = 4 1/4
y = 1 7/12
Which value for x makes the equation x - 4.21 = 6.047 true?
A) x = 10.68
B) x = 10.247
C) x = 10.257
D) x = 1.837
C.
x = 10.257
Which value for y makes the equation y / 2.5 = 1.95 true?
A) y = 0.78
B) y = 48.75
C) y = 4.875
D) y = 4,875
C.
y = 4.875