find the the two linear simultaneous equation 2x+3y=-13 -x-y=5

find the the two linear simultaneous equation 2x+3y=-13 -x-y=5
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1 Answer

line 1...2x+3y=-13

line 2...-x-y=5 or -2x-2y=+10

line1 + line2...(2x-2x) +(3y-2y) =10-13

y=-3

from line2...x+y=-5, so x=-y-5....

x=3-5....x=-2
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