Two records and three tapes cost $31. Three records and two tapes cost $29. Find the cost of each records and each tape.

Answer 1

2R + 3T=31
3R+2T=29
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Two equations and two unknowns. Solve the two equations simultaneously. Post your work if you get stuck.

Answer 2

is my answer correct?

T = 7
R = 5

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Answer 3

Yes, but you could check it.
(2*5)+(3*7)= 10 + 21 = 31 AND
(3*5)+(2*7) = 15+14=29 so both equations check.