3 years ago

Solve the system of equations by using subtraction. Y=2x+3 X-y=-2

Mathematics

1 answer:

Firlakuza [10]3 years ago

3 0

Answer:

y = 2x + 3 .... 1

x - y = -2 ...... 2

substitute the value of y in equation 2

x - (2x +3) = -2

x - 2x -3 = -2

-x = - 2 + 3

-x = 1

divide by -1 on both sides

x = -1

substitute the value of x in equation 1

y = 2 (-1) + 3

y = -2 + 3

y = 1

(x ; y)

(-1 ; 1)

You might be interested in

A chestnut falls from a tree 45 feet above ground.Use the vertical motion model to find how long it takes to hit the ground.Roun

miv72 [106K]

Ok so please check if im wrong its 25

3 0

3 years ago

According to the graph above,what is the unit rate of a human's heartless per minute

kari74 [83]

The unit rate for the graph above is 60 heartbeats per minute. Half of 2 is 1 so go to the 1 min. mark and go up until you reach the line graph and it says 60. Do the same for the 2 min. mark and go up until you reach the line graph and it'll say 120. 60 ÷60=1 and 120 ÷ 60= 2

5 0

3 years ago

What is an expression for 5(9m+2n-6m)

Elis [28]

45m+10n-30m
15m+10n

I believe this is right.

6 0

3 years ago

Read 2 more answers

Here said the sum of several decimal numbers is less than. 28.431 and greater than 28.404 which of the following could be here's

igor_vitrenko [27]

Your answer is C) because it is in between

8 0