Verified answer

2t + 3n = 2015

4t + 2n = 2490

Multiply the first equation by negative two and add together:

-4t + 4t + -6n + 2n = -1540

-4n = -1540

n = 385

Plug back in and solve for t:

2t + 3(385) = 2015

2t = 860

t = 430

$385 to stay in NYC and $430 to stay in Tokyo.

Solve as a system of equations.

2x+3y=2015

4x+2y=2490

Solve however you like. I'm going to cheat and use an online resource.

x=430, y=385.

Tokyo is $430, New York is $385.

Hope this helped.

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2T + 3N = 2015

4T + 2N = 2490

4N = 1540

N = 385

T = 430