Question

solve the system of equations and give the value of x. {4x-3y=-42.... -6x+7y=68}... a. x=-10. bx=-9. c. x=9. d. x=2

Answer 1

here u have unique solution

Answer 2

u here multiply the first eq by 7 and second one by 3 we have and then add
28x-21y=-294
-18x+21y=204
after adding we have 10x = -90
hence
x=-9

Answer 3

ok.. so.. for example; -x+6y=-2... -4x+24y=8 would be 4x-24y=8, -4x+24y=8.. so therefore, no solution? or 0?

Answer 4

im definitely becoming your fan! :) Thanks for all your help.

Answer 5

are u multiplying -x+6y=-2 by 4
then it results in -4x+24y=-8

Answer 6

thanks dear...

Answer 7

well i mulyiplied by 4.. so should i have done -4?

Answer 8

so is it x=2? x=0? x=9? or no solution.. ? and how..

Answer 9

i thought we made the x or y opposite to cancel it out?

Answer 10

there is -2 at rthe right side of -x+6y=-2

Answer 11

can u restate the question please

Answer 12

nevermind.. i got confused, i understand why you did -4 instead of 4..

Answer 13

so is it no solution?

Answer 14

if u have the lines as
-x+6y=-2
and the other one as -4x+24y=8
then yup no solution
as the represent distinct parallel lines

Answer 15

ok.. thanks sweetie.

Answer 16

thanx
bye dear

Answer 17

bye :)