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9. A two digit number is 2 more than 5 times the sum of its digits. If the digit in the tens place is 1 lessthan the digit in the units place, find the number. |
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Answer» Answer: 10Y+x-5(x+y)=2 10y+x-5x-5y=2 2ND equation= x-y=1 1st equation + 2nd equation *4 = x-6=1 x=7 7-y=1 y=7-1=6 Number= 10y + x 10*6+7=67 4.0 |
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