3 years ago

3x-2y=1 -x+y=9 Solve by elimination

Mathematics

1 answer:

solong [7]3 years ago

5 0

Answer:

x=19 and y=28

Step-by-step explanation:

3x-2y=1

-x+y=9 which is x=y-9

Substitute the value of x=y-9 in the equation 3x-2y=1

3(y-9)-2y=1

3y-27-2y=1

y-27=1

y=27+1=28

Substitute the value of y=28 in the equation -x+y=9

-x+28=9

x=28-9=19

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