What is the value of the x variable in the solution to the following system of equations? .
2x − 3y = 3
5x − 4y = 4
a.) −1
b.) 0
c.) x can be any number as there are infinitely many solutions to this system
d.) there is no x value as there is no solution to this system

B

Step-by-step explanation:

We need to solve for    here.

Equation 1:  

Equation 2:  

Solving for  in Equation 1 and substituting that into Equation 2 gives us:

Substituting this expression into Equation 2 and solving for  gives us:

 is the solution. Answer choice B is correct.

3

step-by-step explanation:

in standard form:

a= dictionaries

b= maps

you have to buy 3 dictionaries, so put a 3 next to the a (dictionaries) so that you can multiply them by each other.

a3+b= 60 (the amount of money you have)

we already know the cost of a=15 so replace a with $15

($15 x 3)+b=60

multiply 15 and 3 to get $45 and replace it with $45

45+b=60

and then replace b with 15 to get the total:

45+15=60

that means you have $15 left after buying 3 dictionaries.

15 divided by the cost of a map ($5) equals 3.

so you can buy 3 maps.

sorry if it was confusing!

6x = 48

i hope this . 6 cards each and a total of $48. dvide each side by 6 and you will have your answer.