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
netineya [11]
3 years ago
11

3x+7=5x-9, what is the value of x?

Mathematics
2 answers:
inysia [295]3 years ago
6 0
3x+7=5x-9
-3x -3x
7=2x-9
+9 +9
16=2x
/2 /2
x=8
pickupchik [31]3 years ago
3 0

Answer:

Step-by-step explanation:

X=8

Step1 subtract 5x from both sides

Step2 subtract 7 from both sides

Step3 divide both sides by -2

You might be interested in
PLZ HELP ME PLZZZ THIS IS 40% of my grade
Salsk061 [2.6K]
I think it’s 8 but plz double check
4 0
3 years ago
Read 2 more answers
15 points and brainliest!! please help !!
Arte-miy333 [17]
This will be solved by solving for x first. Firstly you multiply the top equation by 2 and the bottom by -3. This will change both equation to (top)-10x+6y=-54 and (bottom) 27x-6y=-57. Now when you add the factors the y-values cancel out leaving you with; 17x=-3. now you have to divide by 17 on both sides giving you x=-0.17647058823 (not the prettiest solution but you can round if you want to). After that pick an equation to solve for y (I'm picking the top); the equation will be 5(-0.17647058823)+3y=-27. multiply the negative decimal and 5 to get -0.88235294117 (again not the prettiest). Add that to both sides which will give you 3y=-26.1176470588. After this divide both sides by 3 which will give you y=-8.70588235294. Your answer is (-0.17647058823,-8.70588235294) You can divide to the second or third decimal if needed-----remember that as you round from left to right on a decimal if it's below five you leave it and if it's above 5 then round up 1. I hope this help :)
3 0
3 years ago
What is the identity of 8z^3+27
Alik [6]

8 is a cube: 2³

27 is a cube: 3³

The expression can be identified as "the sum of two cubes": (2z)³ + 3³.

8 0
3 years ago
What is the answer and please show work
zhuklara [117]
#26 right?

35x + 140 = 1050
       -140      -140 
 
<u>35</u>x = <u> 910
</u>35        35

x = 26 weeks

7 0
3 years ago
What is the speed of a runner who completes the 800 m race in one minute and 40 seconds?
skelet666 [1.2K]
Answer: 8 m/s

First let’s convert the time to seconds. There are 69 seconds in a minute so 1 minute and 40 seconds is 60 +40 second which totals to 100 seconds
Now to get the speed in meters per second we divide the total meters run by the total seconds
So the speed will be 800m/100s = 8m/s
7 0
3 years ago
Other questions:
  • What is the answer to this question​
    13·2 answers
  • Which of the following lines is parallel to the graph of 5x+2y=8
    6·1 answer
  • I need help on my math question for homework please help me,<br> What is -4x+3y=12?
    8·1 answer
  • Solve this application using logarithms. How long will money in savings take to double at 5% interest compounded annually? Round
    15·1 answer
  • Find x and y for these problems part 2​
    5·1 answer
  • Is the sequence an a solution of the recurrence relation an = 8an−1 − 16an−2?
    13·1 answer
  • Presented below is information related to Haselhof Inc. Balance per books at October 31, $41,847.85; receipts $173,523.91; disbu
    13·1 answer
  • What is the sum of 3 times x and 5
    14·1 answer
  • Expand &amp; simplify 4 ( p + 3 ) + 4 ( p − 6 )
    9·2 answers
  • Which expression is equivalent to 5r+11r−2?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!