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stira [4]
4 years ago
9

I am having trouble solving this problem via Elimination Method. y = -7+0 y = 1x-21

Mathematics
1 answer:
navik [9.2K]4 years ago
6 0
(y=-7)*-1  
y=-21+1x
-y=7
y=-21+1x
0=-14+1x......>14=x
substituted to 2nd equation y=1(14)-21=-7
check -7=-7+0 .....>-7=-7 
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