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
Lorico [155]
3 years ago
9

-2x-5y=3 3x-8=-6 solve by substition

Mathematics
2 answers:
ELEN [110]3 years ago
6 0
Maybe use photo math i guess
Irina18 [472]3 years ago
5 0

Answer:

x = 2/3

y = -13/15

Step-by-step explanation:

3x – 8 = -6

+8 +8

[addition property of equality]

3x = 2

÷3 ÷3

[division property of equality]

x = 2/3 → -2x – 5y = 3

[substitution property]

-2(2/3) – 5y = 3

[distributive property]

-4/3 – 5y = 3

[Create the proportional equivalent of each term so that all terms share the same denominator]

-4/3 – 15y/3 = 9/3

[multiplication property of equality]

3 ( -4/3 – 15y/3 ) = 3 ( 9/3 )

[distributive property]

-4 – 15y = 9

+4 +4

[addition property of equality]

-15y = 13

÷-15 ÷-15

[division property of equality]

y = -13/15

You might be interested in
What is the length of the red segment in the graph below?
Anon25 [30]

Answer: b 1.20

Step-by-step explanation:

b 1.20

7 0
2 years ago
What fraction is equivalent to 36/60 and the sum of the numerator and denominator is 24
almond37 [142]

Answer:

The fraction is \frac{9}{15}

Step-by-step explanation:

\frac{36}{60} = \frac{x}{y}

Where x and y are the numerator and denominator of our new fraction respectively.

Also given is that x + y = 24

So  \frac{x}{y} = 36 ÷ 60 = 0.6

x = 0.6y

Substituting x in x + y = 24 gives;

0.6y + y = 24 , 1.6y = 24

y = 24 ÷ 1.6 = 15

x = 24 - 15 = 9

So our fraction is \frac{9}{15}

5 0
3 years ago
I will mark you brainliest! How much money did Nikki orginally invest?
Deffense [45]

Answer:D

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
The graph of a relation is shown.
vivado [14]
7/4 and 3 because they are positive
6 0
2 years ago
I need help on this and the first person who answer correctly gets a BRANLIST​
Alborosie

Answer:

It would be D

Step-by-step explanation:

All the coordinates are divided by half.

6 0
3 years ago
Other questions:
  • Can you help me with number 10
    13·1 answer
  • If someone runs 4 miles in 30 minutes how many will they run in 48 minutes
    12·1 answer
  • you worked 6 and three fourths hours on Monday Seven and one fourth on Tuesday eight and one fourth on wendsey seven and one fou
    5·1 answer
  • The FDA recommends that Americans get on average 3,000mg of salt in their daily diet. Suppose that you are interested in testing
    6·1 answer
  • Benito wants to buy a car. He is considering two different models. Model A is 6 7/8 feet wide. Model B is 75 inches wide. Expres
    6·1 answer
  • at the same time a 15 foot pole casts a 7.5 foot shadow a nearby tree casts an 11 foot shadow how tall is the tree​
    13·1 answer
  • Solve m4=21<br> m=<br><br> BEST ANSWER GETS BRAINLIEST
    8·1 answer
  • Select all the expressions that have a value of 180 when b = 4.
    10·1 answer
  • I need to knw whats the slope of the graph pls, no links
    9·1 answer
  • Write an equation in Ax+By=C form for this line.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!