How can 1/2x - 5 = 1/3x + 6 be set up as a system of equations?

A: 2y+x = - 10

3y+x = 18

B: 2y+2x = - 10

3y+3x = 18

C: 2y-x = - 10

3y-x=18

D: 2y-2x = - 10

3y-3x = 18

Hey what's this math problem?

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0.59+0.33t=3.68t-0.75

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What is 2/9+1/3 = i need it for for my homework