Question

Question 3 (5 points)
Jordan solved the equation −7x + 25 = 48; his work is shown below. Identify the error and where it was made. (5 points)

−7x + 25 = 48
Step 1: −7x + 25 − 25 = 48 − 25
Step 2: −7x = 23
Step 3: negative seven times x over seven = twenty-three over seven
Step 4: x = twenty-three over seven

a
Step 1: He should have added 25 to each side.

b
Step 1: He should have divided both sides by −7.

c
Step 3: He should have divided both sides by −7.

d
Step 3: He should have multiplied both sides by −7.

Question 4 (5 points)
When solving negative one over three (x − 15) = −4, what is the correct sequence of operations? (5 points)

a
Multiply each side by negative one over three , subtract 15 from each side

b
Multiply each side by −3, add 15 to each side

c
Multiply each side by negative one over three , add 15 to each side

d
Multiply each side by 3, subtract 15 from each side

Answer 1

Answer:

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