Question

17. Find the mistake below.

Step 1:
9-5(2x + 4 - 3) = -28
Step 2:
9 - 5(2x + 1) = -28
Step 3:
4(2x + 1) = -28
Step 4:
8x + 4 = -28
Step 5:
8x = -32
Step 6:
x = -4
When did the mistake first appear?
A. Going from Step 1 to Step 2
B. Going from Step 2 to Step 3
Ο Ο Ο
C. Going from Step 3 to Step 4
D. Going from Step 4 to Step 5

Answer 1

Step

Statement

1

2

3x + 7 = 15

x + 7 - 7 = 15

ža

3

= 15

4.

3

= 3.15

5

r = 45

Which statement is true?

A. Jake made a mistake in step 2.

B.

Jake made a mistake in step 4.

C.

Jake made a mistake in step 5.

OD Jake solved the equation correctly.

Answer:

If the air trolley ended at 60 km and it traveled 20 km- what was its starting position?

Step-by-step explanation: Step

Statement

1

2

3x + 7 = 15

x + 7 - 7 = 15

ža

3

= 15

4.

3

= 3.15

5

r = 45

Which statement is true?

A. Jake made a mistake in step 2.

B.

Jake made a mistake in step 4.

C.

Jake made a mistake in step 5.

OD Jake solved the equation correctly.

Answer:

If the air trolley ended at 60 km and it traveled 20 km- what was its starting position?

Step-by-step explanation:

Explanation: