Question

Solve system using substitution 3x+y=5 2x-5y=9

Answer 1

does anybody know the answer

Answer 2

( 2, -1 )

Answer 3

can you show me how you got that plz

Answer 4

you first get one of the variable alone. I got the y in the 1st eq alone: y=5-3x
Then you take the y out of the second eq and put the 5-3x in. Like : 2x-5(5-3x)=9
So u slove it X=2
Then plug x in one of the eqs. For example : 3*2+y=5
6+y=5 y=-1
So the solution is ( 2 , -1 )

Answer 5

thanks

Answer 6

ur welcome !!

Answer 7

can you help me on the other math problems i have. i don't want to be a bother

Answer 8

yes. what is it ? :)

Answer 9

y-2=x
-x=y

Answer 10

For that one i am not sure how to do it... sorry :P coz when i plug it in, the solution didnt work for one of the eq ...

Answer 11

Try ask somebody else

Answer 12

its ok how about
6y+4x=12
-6x+y=-8

Answer 13

i got (1.5,2) but when i check it i got it wrong

Answer 14

its (1.5, 1 )

Answer 15

oh i know what i did i misplaced a number thanks

Answer 16

no probbb :D

Answer 17

how about
2y-3x=4
x=-2

Answer 18

(-2 , -1 )

Answer 19

can you show your work plz