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Solve using Substitution
-2x+y=4
-5x+2y=1

Sagot :

Answer:

x=7

y=18

Step-by-step explanation:

y=2x+4

-5x+2(2x+4)=1

-5x+4x+8=1

-x=-7

x=7

-2(7)+y=4

-14+y=4

y=18

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