Question

Can someone help me with this question? I'm stuck. I'll fan/medal and whatnot.

The work of a student trying to solve the equation 4(2x − 1) = 11 + 3x + 5 is shown below:

Step 1: 4(2x − 1) = 11 + 3x + 5
Step 2: 8x − 4 = 16 + 3x
Step 3: 8x + 3x = 16 − 4
Step 4: 11x = 24
Step 5: x = 2.18

In which step did the student first make an error and what is the correct step?

A. Step 2: 8x − 1 = 16 + 3x
B. Step 2: 8x − 8 = 6 + 3x
C. Step 3: 8x − 3x = 16 + 4
D. Step 3: 8x + 3x = 16 − 8

Answer 1

C.

Answer 2

You are meant to subtract 3x from both sides of the equation, not add. The same goes with 4. You are meant to add the 4 from both sides, not subtract.

Answer 3

Thank you very much

Answer 4

would you mind medalling me ^^ :) it was my pleasure.

Answer 5

Which excerpt from "Yearbooku201d is an example of direct characterization?

Answer 6

If BC = 7 and CD = 24, find AC.

Answer 7

Which of the following best supports your understanding of the denotative meaning of a word?

The denotative meaning of a word communicates all of the feeli

Answer 8

Below are the steps to solve an equation:

Step 1: |x u2212 5| + 2 = 5
Step 2: |x

Answer 9

[GIVEAWAY] Hulu account

Reply here to have a chance of winning.

Answer 10

i need some answers checked

Answer 11

Use the Pythagorean theorem to answer this question. Becca paddles a boat from the south bank of a stream to the north bank.

Answer 12

Enthalpy change depends on the rate at which a substance is heated or cooled.

TR

Answer 13

The amount of energy required to raise the temperature of a swimming pool depends on the mass of water present.

Answer 14

i need my answers checked, please

Answer 15

more answers i need checked

Answer 16

The graph of which function does not contain the point (0, 1)?
A.
y = (3/4)^x
B.
y = -2^x
C.

Answer 17

i need more answers checked

Answer 18

i need someone to check my answers

Answer 19

i need some answers checked

Answer 20

What is the most likely risk when a society uses wind as an energy source?

Answer 21

Greeks propose fundamental substances: earth, air, fire, and water.
2 Many different cultures began to practice alchemy.

Answer 22

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Answer 23

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Answer 24

Can someone help me?
Peter and his four brothers combined all of their money to buy a video game.