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
Nina [5.8K]
3 years ago
14

Correct answer gets branliest Solve the equation. Check your answer. 21= 7x+1 - 3x

Mathematics
1 answer:
svlad2 [7]3 years ago
5 0
The answer is 5. You combine like terms making -3x+7x equal 4x,
You might be interested in
The solution to 3x2 – 12x 24 = 0 is
zzz [600]
3x^2 - 12x + 24 = 0 \\ x^2 - 4x + 8 = 0 \\ x= \frac{-b \pm  \sqrt{ b^{2} -4ac} }{2a} 
; where a = 1, b = -4 and c = 8
x= \frac{-(-4) \pm \sqrt{ (-4)^{2} -4 \times 1 \times 8} }{2 \times 1} \\ = \frac{4 \pm \sqrt{ 16 -32} }{2} \\ =\frac{4 \pm \sqrt{ -16} }{2} \\ =\frac{4 \pm 4i }{2} \\ =2+2i \ or \ 2-2i
7 0
3 years ago
Read 2 more answers
Write an equation of a line with the given slope and y intercept m =1/4,b=-3/4
leva [86]

Answer: y=1/4x-3/4

Step-by-step explanation:

We have our equation of a line formula y=mx+b

Then we substitute the given and get y=1/4x-3/4

3 0
3 years ago
HELP PLSS
atroni [7]

The balloon reaches a height of 7 feet at 0.1 seconds and 2.13 seconds

<h3>How to determine the time the balloon is at the height?</h3>

The equation of the function is given as

h(t)= -16t^2 + 35t + 5

The above equation is a quadratic equation

When the balloon is at a height of 7 feet, we have

h(t) = 7

So, we have the following equations

h(t)= -16t^2 + 35t + 5

h(t) = 7

Next, we plot the equations on a graph (see attachment)

The equations intersect at

t = 0.059 and t = 2.129

Approximate

t = 0.1 and 2.13

Hence, the times are 0.1 seconds and 2.13 seconds

Read more about quadratic equation at

brainly.com/question/15709421

#SPJ1

8 0
1 year ago
Sofia is learning to knit. After her first three stitches, she had to undo the last two. Then she made three more stitches and a
Marizza181 [45]
She’ll have to make 4 more stitches in order to get 6 good ones. Each time she creates 3 she undoes 2 which after 4 more times would leave her with 6 good stitches.
4 0
3 years ago
A group of 42 people are going to a restaurant. Each table at the restaurant can seat 6
jenyasd209 [6]

Answer: Okay the numbers you put was confusing but I think I got it.

42÷6=x

Step-by-step explanation:if 6 can sit a a table then dividing the number of people by 6 gives the answer.

3 0
3 years ago
Read 2 more answers
Other questions:
  • What property out of distributive,communitive,and associative.
    5·1 answer
  • a bag contains a-r-I-t-h-m-e-t-I-c. Amelia chooses a tile without looking and doesn’t replace it. She chooses a second tile with
    15·2 answers
  • A diagonal support beam is attached to the gate of a fence as shown. Which angles must be congruent in order for the top and bot
    11·1 answer
  • What is the root?<br> <img src="https://tex.z-dn.net/?f=3-%20%5Csqrt%7Bx%7D%20%3D0%20" id="TexFormula1" title="3- \sqrt{x} =0 "
    11·1 answer
  • Which expression gives the best estimate of 30 percent of 61
    5·2 answers
  • Please help me.Find the lateral suface area
    5·1 answer
  • Find the length of a line joining the point ( 4,3 ) and origin .​
    8·2 answers
  • HELP MEEEE PLZ. <br> i need to Find the surface area and volume
    15·1 answer
  • 700+500+100-1000 Giving Brainliest ​
    11·2 answers
  • Bentley's rectangular desktop measures 39 1/2in long and 24 3/4in wide what is the area of his desktop
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!