How do you complete each ordered pair (_, -1) so that it is a solution to 6x - y = 7?

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Answer 1 · 2016-05-07T21:06:56

#P_1->(x,y)->(4/3,-1)#

Given: point 1 #->P_1->(x,y)->(?,-1)#

Given:#" "6x-y=7#

From #P_1; y=-1#

so #color(brown)(6x-y=7)color(blue)(" "->" "6x-1=7#

Add 1 to both sides

#6x-1+1=7+1#

#6x+0=8#

Divide both sides by 6

#6/6x=8/6#

But 6/6=1#

#x=8/6 = 4/3#

so #P_1->(x,y)->(4/3,-1)#