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Salsk061 [2.6K]
3 years ago
5

Please help no links

Mathematics
1 answer:
Nina [5.8K]3 years ago
8 0

Answer:

x=5 y=-6

Step-by-step explanation:

3x+y=9 ------eqn1

y=4-2x -------eqn2

using substitution

put y=4-2x into eqn1

3x+4-2x=9

x=5

put x=5 into eqn2

y=4-2(5)

y=4-10

y=-6

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