1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
saw5 [17]
1 year ago
3

3|x-4|+5=9x-7 solve the following equation

Mathematics
1 answer:
Tresset [83]1 year ago
4 0

Answer:

x = 2

Step-by-step explanation:

3|x - 4| + 5 = 9x - 7

3|x - 4| = 9x - 12

|x - 4| = 3x - 4

x - 4 = 3x - 4  or  -(x - 4) = 3x - 4

-2x = 0  or -x + 4 = 3x - 4

x = 0  or  -4x = -8

x = 0  or  x = 2

Check:

x = 0

3|0 - 4| + 5 = 9(0) - 7

12 + 5 = -7

17 = -7

Since 17 = -7 is false, x = 0 is not a valid solution.

x = 2

3|2 - 4| + 5 = 9(2) - 7

6 + 5 = 18 - 7

11 = 11

Since 11 = 11 is true, x = 2 is a valid solution.

Answer: x = 2

You might be interested in
Please can you help me with this questions # 3 - # 7. Thanks.
Vladimir79 [104]
#3
385 of 438 is 170.24 but since you cant have a quarter of a person it would be about 170 student
4 0
3 years ago
A video game club charges a fixed annual membership fee of $20 and $2 per video game rented. Let f(n) represent the total annual
Rasek [7]
<span>fixed annual membership fee of $20
</span><span>$2 per video game rented.
</span><span>Let f(n) represent the total annual cost of renting n video games
so
f(n) = 20 + 2n

if </span><span>increased by $15 the next year
then
f(n) = </span>20 + 2n + 15
f(n) = 2n + 35

answer
<span>f(n) = 2n + 35 (first choice)</span>
5 0
4 years ago
What is the solution to this system of equations?<br> 4x+y=6<br> x-2y=6
Darina [25.2K]

x=2 and y=(-2)

hope it helps...

4 0
3 years ago
Read 2 more answers
I need help with all of the questions please answer my questions fast
Trava [24]

Answer:

F is 1/10

Step-by-step explanation:


6 0
4 years ago
Read 2 more answers
Round each decimal to the nearest one then subtract $3.85-$2.17
nadya68 [22]
4-2=2
3.85 rounded to the nearest one is 4
2.17 rounded to the nearest one is 2
8 0
3 years ago
Other questions:
  • How much is 30% of 30000
    5·2 answers
  • Summer clothes are on sale starting September 1st. A swimsuit is on sale for 40% off the regular selling price of $55.00. What i
    10·1 answer
  • The numbers 0 through 9 are used in code groups of four to identify an item of clothing. code 1083 might identify a blue blouse,
    12·1 answer
  • How do I solve this graph
    9·2 answers
  • If AB = 2x – 5 and BC = x + 3, find x.<br><br> A. 8<br> B. 10<br> C. 12<br> D. 14
    7·1 answer
  • She usually orders 2 pizzas for 8 people. If she is expecting 48 people to come to her party,how many pizzas should she order?
    5·1 answer
  • 3x+2(x+1) what is it
    5·2 answers
  • Participant A did 120 jumping jacks in 10 minutes. Participant B did
    9·1 answer
  • Can someone help me plz
    8·1 answer
  • HELP ME OUT PLEASE!!!​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!