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
const2013 [10]
2 years ago
11

If - 4x + 6y = 9 and -2x – 7y = -8 are true equations, what would be the value of -2x + 13y?

Mathematics
1 answer:
UkoKoshka [18]2 years ago
6 0

Answer:

  17

Step-by-step explanation:

The expression of interest is the difference of the two given expressions.

  (-4x +6y) -(-2x -7y) = (9) -(-8)

  -2x +13y = 17

The value is 17.

_____

<em>Additional comment</em>

You could go to the trouble to solve the two equations for x and y, then compute the value of the expression you want. As we saw above, that is not necessary.

The first step in problem solving is always "look at the given information and how it relates to what you are asked." A little time spent doing that can save a lot of effort in the actual problem solving process.

You might be interested in
Solve for x, I'm confused
IrinaVladis [17]
Both angles have to be 90 so if you find the value for x for one you get the other one ahmatically answer is 22 btw :)
8 0
2 years ago
Read 2 more answers
Find the area of the figure shown below and type your result in the empty box.
marusya05 [52]
The answer is 150 because you first find the area of the square which is 10x10=100 and then you find the area of the triangle which is 10x10=100 divide by 2 will give you 50 so 100+50=150 hope this helps :)
3 0
3 years ago
Read 2 more answers
Solve The following m/2+6=2m-6
rewona [7]

m =8

hope it helps

pls follow me thank you

7 0
2 years ago
Read 2 more answers
45 x 60 / 45 = ______ <br><br> pleasee help
AleksandrR [38]

Answer:

60

Step-by-step explanation:

45 x 60/45 = 2700/45

2700/45 = 60

8 0
2 years ago
4x/3 + 2(3- x) = 5 Solve for x as an FRACTION
forsale [732]

Answer:

<h2>The answer is .... <u><em> x = 3/2</em></u><em> </em>and if you want to write it as a mixed fraction i will be x= <u><em>1 and 1/2</em></u></h2>

Step-by-step explanation:

Hope this Helped :)

6 0
3 years ago
Other questions:
  • In a chest there are some gold coins. Captain takes half the coins. Sally takes a quarter of the coins. There are 3 coins left.
    9·1 answer
  • Johann baked 24 cookies for a picnic with his friends. Of the 10 friends he invited, 7 friends were able to attend the picnic. I
    6·1 answer
  • If a coin is flipped 70 times how many times should it land with tails side face up
    13·2 answers
  • Need help can someone help
    14·1 answer
  • PLZ ANSWER FAST!!!!
    14·1 answer
  • How to do exponential functions
    7·1 answer
  • 83 is the sum of three consecutive intengers what are the intengers
    8·1 answer
  • Find the slope of the line that passes through the points (-4,2) and (2,6)
    15·1 answer
  • What is 50(4+6)?<br> πωπ
    5·2 answers
  • Sales tax is ,<br> to the price
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!