Ask
your own question, for FREE!

Mathematics

OpenStudy (anonymous):

I 3x + 7 I = - I 8x -2I Can somebody explain why my answer key says, that there is no solution to this equation?

8 years ago
OpenStudy (anonymous):

because absolute value cannot be negative

8 years ago
OpenStudy (anonymous):

Refering to the negative 2 inside the symbols, or the negative sign outside them?

8 years ago
OpenStudy (anonymous):

the equation means that the absolute value on the LHS must equal the negative of absolute value on the RHS. but since absolute values cannot be negative, it is impossible for the LHS to be equal to RHS

8 years ago
OpenStudy (anonymous):

(but you need to check for 0, as the absolute value of 0 is 0)

8 years ago
OpenStudy (anonymous):

thanks, lightbulb came on. :)

8 years ago
OpenStudy (anonymous):

yes, andras, but the values of x that make the LHS and RHS 0 are different. so that cannot be a solution

8 years ago
OpenStudy (anonymous):

true true

8 years ago
Can't find your answer?
Make a FREE account and ask your own question, OR you can help others and earn volunteer hours!

Latest Questions

bill533:
The figure is composed of a square with an equilateral triangle on top of it. If the area of the square is 25 square inches.

1 hour ago
12 Replies
0 Medals

bill533:
What is the best estimate for the width of the rectangle based on the length? A) 3.

1 hour ago
8 Replies
1 Medal

bill533:
Find the slope of the line segment shown. A) -1/2 B) -1 C) 1/2 D) 1 E) 5

2 hours ago
10 Replies
1 Medal

bill533:
How many lines of symmetry does this figure have? [Note: The black ball is part of the figure.

2 hours ago
30 Replies
1 Medal

mhchen:
I'm given 3 quadratics in the form ax^2 +bx + c And I'm given a 4th quadratic, also in the same form.

4 hours ago
1 Reply
0 Medals

papapango:
Tarin organized this table to determine the number of adults, a, and children attending a fundraiser based on the total number of people attending and the t

8 hours ago
0 Replies
0 Medals

rhiannonw0120:
Larry is writing a literary analysis essay on Shakespeareu2019s Romeo and Juliet. Which two elements should his essay include? A. a debatable thesis statement B. a broad essay topic C. an extensive summary of the plot D. textual evidence to support the thesis

19 hours ago
0 Replies
0 Medals

Draden:
A pitcher notices pain in his elbow during warm-ups. Since pitching a ball is a r

6 hours ago
1 Reply
0 Medals

shyshy827:
Explain the reasons for U.S. neutrality during the 1920s and 1930s. How did ideas about neutrality change during the period from the end of World War I to t

20 hours ago
0 Replies
0 Medals