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USPshnik [31]
3 years ago
10

1.y=-1 is a solution of the equation x+y=2​

Mathematics
2 answers:
DENIUS [597]3 years ago
7 0

Answer:

X=3

X + -1 = 2

Go backwards and use inverse operations

Subtract instead of add

2 - -1 = 3

X=3

Double check

3 + -1 = 2

Hope this helps. X=3

Step-by-step explanation:

SCORPION-xisa [38]3 years ago
4 0

Answer:

x=3

Step-by-step explanation:

Y=-1

x+y=2

x-1=2

x=3

3-1=2

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Find an odd number with 3 digits such that all the digits are different and add up to 15. The difference between the first two d
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Answer:

The three digit number = 951

Step-by-step explanation:

Let suppose the numbers are:

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According to given condition:

a+ b + c = 15  -------------eq1

Also, given the difference between the first two digit = the difference between the last two digits:  

==> l a-b l = l b-cl  

==> (a-b) = (b-c)  

==> (a+c) = 2b

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==> 3b = 15

Dividing both sides by 3 we get:

b =5

a + c = 2b

a+ c = 10

a = 10 -c ..........(2)

We know that"  

(a-b) = (b-c)

==> a > b+c

==> a > 5 + c

==> 10 -c > 5 +c  

==>5 > 2c

==> 2.5 > c

As c is an odd number so c will be equal to 1

c = 1

a = 10 -1

a = 9

The three digit number = 951

The hundred digit is greater than the sum of the tens and ones digits

i hope it will help you!

6 0
3 years ago
Without subtracting 8.5 - 4.64, determine what digit will be in the hundredths place. Explain
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3 0
3 years ago
Complete the equation for the standard form of the line that has an x-intercept of 3 and a y-intercept of 5.
Ugo [173]

Answer:

5x+3y=15

Step-by-step explanation:

We are given two coordinates (3,0) (0,5)

Start by finding slope

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y=mx+c

y= -5/3x+c (but remember standard line is ax+by=c) so we have to switch sides

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3 0
3 years ago
Read 2 more answers
<img src="https://tex.z-dn.net/?f=3x%20-%202y%20%3D%2043x%20%2B%202y%20%3D%208" id="TexFormula1" title="3x - 2y = 43x + 2y = 8"
den301095 [7]

3x - 2y = 8 +

===》 46x = 16

43x + 2y = 8

x = 16/46

x = 8/23

______________________________

3x - 2y = 8

3(8/23) - 2y = 8

24/23 - 2y = 8

2y = 24/23 - 8

y = 12/23 - 4

y = 12/23 - 92/23

y = - 80/23

5 0
3 years ago
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