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
Mrac [35]
3 years ago
7

How do i solve 3x-8x=-40

Mathematics
2 answers:
Romashka [77]3 years ago
6 0

Ok so to solve for x you need to isolate the variable. Usually, when solving an equation the first step would be to get all of the variables of x on the same side but this equation is already set up that way. Since 3x and 8x are both of the variable x you can simply subtract them and you would be left with:

-5x=-40

Now what you want to do is completely isolate x to get it by itself in which you would divide both sides by -5. Remember *When solving an equation you must do the same math to both sides.

-5x/-5=-40/-5

x=8

So the answer would then be 8. Also remember you can always check to see if your equation is correct by plugging your answer into the original equation

3(8) - 8(8) = -40

24 - 64 = -40

-40 = -40

Hope this helped :)

balandron [24]3 years ago
3 0

Answer:

The answer is 8 below is how you do it.

Step-by-step explanation:

first combine like terms 3x-8x

then you will have 5x

then do 40/5 and you will get x=8

You might be interested in
Here 1 more than BIG PRIZE
Firlakuza [10]
Hey there! :D

Use the distributive property.

a(b+c)= ab+ac

6(9x+2)+2x

54x+12+2x

56x+ 12 <== equivalent expression

I hope this helps!
~kaikers
4 0
3 years ago
Look at the model below which are true
OLga [1]

3(2+x)

open the parenthesis

= 6 + 3x

3(2+x) = 6 + 3x

Hence the statement of equality is true

H is the correct option

6 0
1 year ago
Point A is at 12, and point D is at 56. Point C is midway between A and D and point B is midway between A and C Which of these i
ziro4ka [17]
I would say 6 because it's midway between 12
7 0
3 years ago
Join my zoom anyone codess one the screeen join
Vesna [10]

Answer:

I can but why?

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
-7h+3(4-6h)=127 is h= 25?
GREYUIT [131]

Answer:

No, h = (-23)/5

Step-by-step explanation:

Solve for h:

3 (4 - 6 h) - 7 h = 127

3 (4 - 6 h) = 12 - 18 h:

12 - 18 h - 7 h = 127

-18 h - 7 h = -25 h:

-25 h + 12 = 127

Subtract 12 from both sides:

(12 - 12) - 25 h = 127 - 12

12 - 12 = 0:

-25 h = 127 - 12

127 - 12 = 115:

-25 h = 115

Divide both sides of -25 h = 115 by -25:

(-25 h)/(-25) = 115/(-25)

(-25)/(-25) = 1:

h = 115/(-25)

The gcd of 115 and -25 is 5, so 115/(-25) = (5×23)/(5 (-5)) = 5/5×23/(-5) = 23/(-5):

h = 23/(-5)

Multiply numerator and denominator of 23/(-5) by -1:

Answer:  h = (-23)/5

4 0
3 years ago
Other questions:
  • Jessica owns a base salary of $150 every week with an additional 40% commission on everything she sells if Jessica is sold $1650
    9·1 answer
  • a store is offering a 20% discount off one item. you also have a coupon for 5$ off one item. Which composite function repressent
    14·1 answer
  • Which of the following is the slope of line perpendicular to the y= -2/3x + 5? A.2/3 B.3/2 C.-2/3 D.-3/2
    10·1 answer
  • Either enter an exact answer in terms of foe use 3.14 for a
    8·1 answer
  • The volume of the box is modeled by the function V (x) = 5x^2 + 5x. What is the volume when x= 4?
    8·1 answer
  • What plus what equals a half
    8·1 answer
  • Find the product of (2x – 3) (x + 5).
    13·1 answer
  • Please help<br> Picture inserted <br> Multiple choice <br> Will appreciate it if u help!
    9·1 answer
  • Solve the system of equations using elimination.
    12·1 answer
  • Find the probability of winning a lottery by selecting the correct six integers, where the order in which these inte
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!