the sum of the two digit number is 7, when you reversed the number it was increased by 27. what is the original number?

unknown values: n

equation: n = 10*a + b

equation: a+b=7

equation: 10*b+a = 27 + n

answer: 25

The sum of the digits of a two digit number is 9. If the digits are reversed, the number is increased by 45. Find the original number.

unknown values: m

equation: m = 10*x + y

equation: x + y = 9

equation: 10*y + x = 45 + m

answer: 27

If 4 is added to a number and the sum is doubled, the result is 18 less than the number. Find the number?

unknown values: n

equation: 2(n + 4) = n - 18

answer: -26

Four times the difference of a number and six is equal to twice the number. Find the number.

unknown values: x

equation: 4 *(x - 6) = 2*x

answer: 12

The sum of three numbers is 5. The sum of the first and second number is 3, and the first number is one more than three times the third number. How many of the numbers are even numbers?

equation: x + y + z= 5

equation: x + y= 3

equation: x = 3*z + 1

answer: 2

I THINK OF A NUMBER IF I MULTIPLY IT BY 6 THE ANSWER WILL BE 80. what IS the number?

unknown values: x

equation: 6*x=80

answer: 40/3 | 13.333

76 is 80% of what number?

unknown values: x

equation: 76 = 0.8*x

answer: 95

Twice the difference of a number and 6 is equal to three times the sum of the number and 4. Find the number.

unknown values: n

equation: 2(n - 6) = 3(n + 4)

answer: -24

The difference when 7 less than a number is subtracted from twice the number is 12. What is the number

unknown values: x

equation: 2*x-(x-7)=12

answer: 5

a two digit number is 5 times the sum of its digits. when 9 is added to the number the result is the original number with its digits reversed. find the original number

unknown values: 10*x+y

equation: 10*x+y=5*(x+y)

equation: 10*x+y+9=10*y+x

answer: 45