Question

How many solutions are there to the following system of equations?

5x + 3y = 7
2x – y = 2

Answer 1

A.1

B.0

C.2

D.infinitely many

Answer 2

multiply 2nd by 3
then sum with the first equation
simplify
then you have value of x

Answer 3

2nd by 3?

Answer 4

yes multiply 2nd by 3

Answer 5

the second equation by 3?

Answer 6

3( 2x-y=2)
6x-3y=6

Answer 7

and now
1st +2nd = ?

Answer 8

so the 2nd equation is now 6x-y=6?

Answer 9

so I would get 12x-4y=12

Answer 10

5x + 3y = 7
6x -3y =6
sum of them is
11x=7+6

Answer 11

oh ok

Answer 12

so ?

Answer 13

so x=1?

Answer 14

wall its more x=1.6

Answer 15

*well

Answer 16

x=13/11
put x to one of equation so you got y
now you have one solution for the system of equation

Answer 17

do find out ?

Answer 18

sorry i meant
do you find out ?

Answer 19

yes y=1?

Answer 20

y=-5/3x+7/3

Answer 21

no y=4/11

Answer 22

and x=13/11

Answer 23

so the answer is D?

Answer 24

infinitely many

Answer 25

no the system has 1 solution
it is (x=13/11 ,y=4/11)

Answer 26

thanks