How do solve the following linear system?: # y = 8 x - 3 , 3y = 15 -6x #?

Question

1353 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2018-06-10T06:22:33

#x=0.6,y=3.8#

Multiply the first equation by 3

#3y=24x-9#

Subtract the second equation

#0=30x-18#

Add 18

#30x=18#

Divide by 30

#x=3/5#

Substitute this answer into #3y=15-6x#

#3y=15-18/5#

#3y=57/5#

Divide by 3

#y=19/5#