4 years ago

Solve the systems of equation by substitution method.2x+y=13x-y=4

Mathematics

1 answer:

SCORPION-xisa [38]4 years ago

5 0

Answer:

x=1, y=-1. (1, -1).

Step-by-step explanation:

2x+y=1

3x-y=4

-------------

y=3x-4

2x+3x-4=1

5x-4=1

5x=1+4

5x=5

x=5/5

x=1

y=3(1)-4=3-4=-1

You might be interested in

Plssss helpppp ASAPP<br> will mark BRAINLIEST!!!

ra1l [238]

Answer:

4th and 5th option

Step-by-step explanation:

you can easily add eqn 1 and 2 to get rid of the y term for 4th option and get rid of x term by addition as well for the 5th option

this is a topic on simultaneous equation. If you wish to explore more into this topic you can give me a follow on Instagram (learntionary) I'll be posting the notes for this topic and some other tips :)

5 0

3 years ago

Read 2 more answers

Find the simple interest earned on $2,500 at 6% for 2 years.

Elina [12.6K]

Answer:

$2800

Step-by-step explanation:

6/100 x 2500 = 150

150 x 2 = 300

2500 + 300 = $2800

<em>Feel free to mark it as branliest :D</em>

7 0

3 years ago

Luca has a book collection of 95 books. She has read 3/5 of the books in her collection. If Luca reads 12 more books this summer

jenyasd209 [6]

Answer:

Step-by-step explanation:

4 0

4 years ago

Read 2 more answers

100 points if you can solve this for me

Amanda [17]

Answer:

5 feet

Step-by-step explanation:

i know it is, i'm a straight A student in math :D

i just don't know how to explain-

8 0

3 years ago

Solve the inequality 8(x + 1) > 7(x + 2).

elixir [45]

8X + 8 > 7x + 14

subtract 7x and 8 from both sides

x > 6

5 0

3 years ago

Read 2 more answers

Solve the systems of equation by substitution method.2x+y=13x-y=4​

Solve the systems of equation by substitution method.2x+y=13x-y=4