What is the value of z in the equation 3z + 5 = 4z − 8? (4 points)
a
−13
b
...
Mathematics, 20.11.2020 20:40 kenna0
What is the value of z in the equation 3z + 5 = 4z − 8? (4 points)
a
−13
b
−1
c
1
d
13
Question 2 (4 points)
(07.05)
Which of these is a simplified form of the equation 8y + 4 = 6 + 2y + 1y? (4 points)
a
5y = 2
b
5y = 10
c
11y = 2
d
11y = 10
Question 3 (4 points)
(07.05)
What is the value of n in the equation 3n + 2(n + 2) = 9n + 12? (4 points)
a
−4
b
−2
c
2
d
4
Question 4 (4 points)
(07.05)
How many solutions can be found for the equation −4x − 11 = 2(x − 3x) + 13? (4 points)
a
None
b
One
c
Two
d
Infinitely many
Question 5 (4 points)
(07.05)
The work of a student trying to solve the equation 2(2x − 3) = 6 + 2x + 4 is shown below:
Step 1: 2(2x − 3) = 6 + 2x + 4
Step 2: 4x − 3 = 10 + 2x
Step 3: 4x − 2x = 10 + 3
Step 4: 2x = 13
Step 5: x = 6.5
In which step did the student first make an error and what is the correct step? (4 points)
a
Step 2: 4x − 6 = 10 + 2x
b
Step 2: 4x − 3 = 2 + 2x
c
Step 3: 4x + 2x = 10 + 3
d
Step 3: 4x − 2x = 10 - 3
Answers: 3
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Mathematics, 21.06.2019 16:30
Iwant to know what 3g+5h+4g-2h is my teacher is too selfish to tell us
Answers: 1
Mathematics, 21.06.2019 21:10
What is the equation of a line passing through (-6,5) and having a slope of 1/3
Answers: 3
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