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Solve using substitution -x+y=3 and -4x+3y=3​
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Solve using substitution -x+y=3 and -4x+3y=3​

User SebastianD
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1 Answer

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Answer:

x=6, y=9. (6, 9).

Explanation:

-x+y=3

-4x+3y=3

-----------------

-x=3-y

x=-3+y

x=y-3

---------

-4(y-3)+3y=3

-4y+12+3y=3

-y+12=3

-y=3-12

-y=-9

y=9

-x+9=3

-x=3-9

-x=-6

x=6

x=6, y=9.

User Mejmo
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