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sattari [20]
3 years ago
13

Solve by substitution. 5x-3y=-4 x+y=-4

Mathematics
1 answer:
GrogVix [38]3 years ago
5 0

Answer:

x=-2,y=-2

Step-by-step explanation:

x+y=-4

x=-4-y--(3)

substitute (3) in (1)

5(-4-y) -3y=-4

-20-5y-3y=-4

-8y=16

y=16/-8

y=-2

substitute y in (3)

x=-4-(-2)

x=-2

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