Mathematics
GarnetDoom424
19

for elimination method the 1st question is Solve the system of equations −6x−5y=−12 and −8x−5y=4 by combining the equations.

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(1) Answers
Genna57

eliminate y's times first equation by -1 and add to 2nd 6x+5y=12 -8x-5y=4 + -2x+0y=16 -2x=16 divide both sides by -2 x=-8 sub back 6x+5y=12 6(-8)+5y=12 -48+5y=12 add 48 to oth sides 5y=60 divide both sides by 5 y=12 x=-8 y=12 (-8,12)

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