3 years ago

У - 6x = || -77 - 2x-3y=-7

Mathematics

1 answer:

Maksim231197 [3]3 years ago

6 0

Answer:

Step-by-step explanation:

1....y=11+6x

-77-2x+3y=-7

replace y by ..1..

so -77-2x+3(11+6x)=-7

-77-2x+33+18x=-7

-44+16x=-7

16x=37

y=11+6x

replace x by 37/16

y=11+6*37/16

y=199/8

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