3 years ago

2x-y=8x+2y=4for the system of equation above, what is the value of x+y?

Mathematics

2 answers:

schepotkina [342]3 years ago

5 0

Answer:

Step-by-step explanation:

2x-y=8 ---> y= 8-2x

substitute y=8-2x into x+2y=4

x + 2(8 - 2x) = 4

x + 16 - 4x = 4

-3x = -12

x = -12/-3

x = 4

substitute x=y into y=8-2x

y = 8 - 2(4)

y = 8 - 8

y = 0

therefore,

x+y= 4+0

btw i like ur jimin pfp besty :)

inysia [295]3 years ago

3 0

2x+10y I thinks that’s the answer mb

You might be interested in

Change 1700kg into tonnes ,pls help im so dumb:)

nordsb [41]

Answer:

Step-by-step explanation:

1700 Kilograms (kg) = 1.7 Tonne (ton)

4 0

3 years ago

Triangle VWX is an isosceles triangle. What is the length of side VW?

patriot [66]

Can you please paste a picture of the triangle? I am happy to help, but I need to see the triangle. :-)

7 0

3 years ago

Read 2 more answers

Suppose your SAT score is 1490. You look up the average SAT scores for

vivado [14]

The best in quality will probably be the 1470 but easiest to get i to is probably 1190 because if your sat score is way above their average they will think you are flaunting and deny your request
Plz mark as brainliest!

6 0

2 years ago

Change to an algebraic expression <br>Half the sum of p and 9

shepuryov [24]

Step-by-step explanation:

1/2 × (p+9) is the algebraic expression.

4 0

2 years ago

Read 2 more answers

What is 6x^-2 simplified

yulyashka [42]

Pemdas
parnthasees
exponnets
mult or div
add or sub

6x^-2 means
6 times x^-2

rmemeber
x^-m=1/(x^m)
6 times x^-2=6 times 1/(x^2)=6/(x^2)= $\frac{6}{x^{2}}$

6 0

3 years ago

Read 2 more answers

2x-y=8x+2y=4for the system of equation above, what is the value of x+y?​

2x-y=8x+2y=4for the system of equation above, what is the value of x+y?