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X + (one and one third + one sixth) = 4.5,
X+（4/3+1/6)=4.5
X+(8/6+1/6)=9/2
X+9/6=9/2
X=9/2-9/6
X=27/6-9/6
X=18/6
X=3
The difference between one seventh of a number and three is equal to the largest one digit. If the number is x, then the equation is ()
Do you use words well
x×1/7-3=9
A two digit number, a single digit number is two times larger than a ten digit number, and its ten digit number plus seven times of each digit number is equal to the two digit number, find the two digit number, find the equation!
Let the ten digit be x, then the single digit be x + 2
x+7（x+2）=10x+x+2
x+7x+14=11x+2
8x+14=11x+2
3x=12
x=4
So x + 2 = 6
A: the double digit is 46
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