How to solve a question with two variables?

X=3Y-6
20Y+35X=3795

2 answers

you know that x = 3y-6

So, use that in the other equation:

20y + 35(3y-6) = 3795
20y + 105y - 210 = 3795
125y = 4005
y = 32.04

Now use that to find x.

Odd, I expected an integer answer. Check for typos.
Thanks Steve! I couldn't figure out how to put the equations together.
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