How do you solve the following linear system: #y - 2x = -6 , 7x - y = 3 #?

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How do you solve the following linear system: #y - 2x = -6 , 7x - y = 3 #?

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Answer 1 · 2018-03-17T13:17:02

#(x,y) = (-9/5, -48/5)#

Explanation:

#y=2x-6# solve for y in terms of x
#7x-(2x-6)=3# plug in above equation to y
#7x-2x+12=3# distribute
#5x=-9# isolate
#x=-9/5# solve
#y-2(-9/5)=-6# plug back into original equation
#y+18/5=-6# multiply
#y=-48/5# isolate
#(x,y) = (-9/5, -48/5)#

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How do you solve the following linear system: #y - 2x = -6 , 7x - y = 3 #?

1 Answer

Explanation:

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