3 years ago

X + y = 4

Mathematics

2 answers:

Helen [10]3 years ago

8 0

Here's how you solve this problem:

1) Multiply the first equation by 2 (result:2x+2y=8).

2) Add both equations together (result:2x+x+2y-2y=8-5)

3) Simplify (result:3x=3)

The answer is 3x=3.

This could be simplified more, however, to equal x=1, since both sides are divisible by 3.

p.s. Have a good day!

zalisa [80]3 years ago

4 0

Answer:

Well it would come out to 2x-3y=-9

Step-by-step explanation:

You might be interested in

Matthew bought a jersey, a pennant, and a hat. He paid with a $50 bill and some money he borrowed from his friend. If Matthew go

Tom [10]

Matthew borrowed $43.99

7 0

3 years ago

Read 2 more answers

Write the equation for the line in the graph in y=mx+b form.

babunello [35]

The answer is number 3. y=(-2/3)x +5

7 0

3 years ago

(3x^2+2x-3)(x-1)<br> please help

cupoosta [38]

Answer:

Step-by-step explanation:

(3x^2 + 2x - 3)(x-1)

Expanding the brackets

x(3x^2 +2x - 3) -1(3x^2 +2x -3)

3x^3 +2x^2 -3x -3x^2 -2x + 3

3x^3 - x^2 - 5x + 3

5 0

3 years ago

A company manufactures a certain item and sells it online. The company has a business model where the cost C, in dollars, to mak

liberstina [14]

9514 1404 393

Answer:

Step-by-step explanation:

Cost and revenue are equal when ...

C = R

2.5x +21 = 6x

21 = 3.5x . . . . . . subtract 2.5x

6 = x . . . . . . . . . .divide by 3.5

The company must sell 6 items to break even.

3 0

3 years ago

Read 2 more answers

A line has ______ rotational symmetry

Ostrovityanka [42]

Answer:

two-fold

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers