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One number is 6 less than another. If 10 times the smaller number minus 4 times the larger number is 12, find the two numbers.

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y-6=x
10x-4y=12

plug first equation into second equation:
10(y-6)-4y=12
10y-60-4y=12
6y=72
y=12

12-6=x
x=6

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