3 years ago

X+y=1 x+3y=9 Solve plzzzzzzzzzzzzzzzzzzzz

Mathematics

1 answer:

katovenus [111]3 years ago

8 0

Answer:

x = - 3

y = 4

Step-by-step explanation:

x + y = 1 | (-3)

x + 3y = 9

- 3x - 3y = - 3

x + 3y = 9

_____________

- 3x + x = 9 - 3

- 2x = 6

2x = - 6

x = - 3

- 3 + y = 1

y = 1 + 3

y = 4

You might be interested in

The base of a rectangular solid is a square with a side of the length a cm. The height of the rectangular solid is b cm and its

Free_Kalibri [48]

The base has an area of $a^2$

So, the volume is $V=a^2b$

Solving for a, you get $a=\sqrt{\frac{V}{b}} =\frac{\sqrt{Vb}}{b}$

3 0

3 years ago

If mZBGF = 152°, what is m ZAGE? A B 88° F G с E D

trapecia [35]

Step-by-step explanation:

mZBGF = 152°, what is m ZAGE?

88°

4 0

3 years ago

I need help with those 2

galina1969 [7]

Question 7 is a, multiply ever number by 5
question 8 is also a, multiply every number by -2

7 0

3 years ago

Perform the indicated operation & simplify. Express the answer as a complex number. ( 6 − 7 i ) ( − 8 + 3 i ) =___

slega [8]

( 6 − 7 i ) ( − 8 + 3 i )

First FOIL:

( 6 − 7 i ) ( − 8 + 3 i ) = -48 + 18i + 56i -21i^2

Combine like terms

= -48 + 74i -21i^2

Convert i^2 = -1

= -48 + 74i -21(-1)

And simplify

= -48 + 74i + 21

= -27 + 74i

6 0

2 years ago

How would you best describe the two students outside the circles?

ruslelena [56]

Answer:

A. They are boys who are not in sixth grade and don't wear glasses.

Explanation:

5 0

3 years ago