Solve for x and y 7x - 3y =232x - 4y = -8

2 answers:

6 0

Ok soo

First substitute the value for x Ok x=23/7 + 3/7 y. 2x-4y=-8

Second solve the equation 2(23/7 +3/7 y) -4=-8

Third substitute the value of y do y=51/11

Forth solve the equation X=23/7 +3/7 x 51/11

Fifths the possible solution is x=58/11

Sixth check the solution (x,y)=(58/11, 51,11)

Seventh simplify 7x58/11-3x51/11=23. 2x58/11-4x51/11=-8

The ordered pair is a solution 23=23. -8=-8

(x,y)=(58/11, 51,11)

dybincka [34]3 years ago

3 0

$Q. 7x - 3y =23$

$Lets, \: Find \: x :-$

$7x - 3y = 23$

$7x - 3(0) = 23$

$x = 3.286$

$Now, Lets \: find \: y :-$

$7x - 3y = 23$

$7(0) - 3y = 23$

$y \: = -7.667$

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13/24

Step-by-step explanation:

First, it would be easier to find the common denominator of 1/3 and 1/8. The easiest way to do that is to do 3x8=24. This means the common denominator is 24 and so we must convert the fractions so they have this denominator.

1/3 --> 8/24

1/8 --> 3/24

Now, we can simply add these fractions together to find out the fraction of songs that are NOT country songs.

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To find out the fraction of songs that are country, simply do 1 (or 24/24) take away 11/24.

24/24 - 11/24 = 13/24 songs are country songs.

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