[SOLVED] Can somebody solve this problem ?

I doubt anyone is going to do your homework for you . . .

Easy peasy said:

I doubt anyone is going to do your homework for you . . .

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I didn't mean to make anyone to do my homework, its just i need to compare the answer from my college teacher to anyone who knows the answer for this problem. My teacher's answer didn't look convincing at all, it doesn't add up to the equation. I have my own answer that is add up to the equation. If i'm somehow pointing out her mistake i'm afraid it'll be me whos in the wrong and it would make me like a fool. thats why i need to confirm wether if her answer is true or not. My teacher's answer for this problem are V1= -20V, V2= -40V, I1= -2 A, I2= 4 A, and I3 = -2 A how is this supposed to add up to the equation ? Compared to mine V1 = -31,42V, V2 = -57,13 V, I1 = -3,142 A, I2 = 5,142 A, I3 = -2,8565 A, so what do you think about this ? Whos in the wrong here ? Thanks.

you wrote that your instructors results do not add up to the equation

show what doesn't add up

as i read the problem, there are 5 unknowns
you need 5 equations to solve for the 5 unknowns
and you need to grind through the algebra carefully

as a side comment, most homework problems are set up to give "pretty" results,
like those your instructor got. without doing the problem, i'd say she is correct.

Your analysis agrees with LTSpice.

Your solution is correct. Here is my calculation

G4BCH said:

Your analysis agrees with LTSpice.

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Thanks for the clarification, i appreciate it.

albbg said:

Your solution is correct. Here is my calculation

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I appreciate the clarification, I no longer have any doubts. Thanks.