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Grant attempted to solve an equation but made an error. What is his error, and which step did he make it in?

Grant attempted to solve an equation but made an error. What is his error, and which-example-1

2 Answers

4 votes

Answer:

Step-by-step explanation:The error is in step 2. −x and 3x combine to make 2x, not 4x. i just did this question so sorry i answered late

User Holographix
by
6.0k points
5 votes

Answer:

B. The error is in step 2,
-x\text{ and }3x combine to make
2x not
4x.

Explanation:

We have been an image that represents Grant's solution of an equation. We are asked to find Grant's error.


-4+2x=5-(x-3)+3x

Let us see our given equation by using distributive property
a(b+c)=a\cdot b+a\cdot c.


-4+2x=5-x+3+3x

Now we will gather like terms.


-4+2x=5+3+3x-x


-4+2x=8+2x

Upon looking at Grant's work, we can see that he combined
3x-x incorrectly. Instead of subtracting x, he added x to 3x, therefore, Grant made an error in step 2 and option B is the correct choice.

User Farrukh Tulkunov
by
6.6k points