The sum of two numbers equals 1. How many times? A+B=1 A*B=? Can you work out this?

The sum of two numbers equals 1. How many times? A+B=1 A*B=? Can you work out this?

two point five

The multiplication of those two numbers equals - 1 and the addition equals 3

Let two unknowns solve the equations
x*y=-1 x+y=3
The solution is x = (3 - √ 13) / 2 y = (3 + √ 13) / 2
Or x = (3 + √ 13) / 2 y = (3 - √ 13) / 2
"√" indicates the root sign

Find three numbers and add them together to multiply them

1,2,3

An integer is added, subtracted, multiplied, and divided by itself, and the sum, difference, product, and quotient are added up to 36 , what's the number?

five

There is an integer added to itself. If you want to subtract, multiply and divide, add up the sum, difference, product and quotient to 64. What is the number

Let this number be X:
2x+0+x^2+1=64
x^2+2x-63=0
(x+9)(x-7)=0
X = - 9 or x = 7

There is an integer that adds, subtracts, multiplies, and divides itself. Add up the sum, difference, product, and quotient to 81. What is this integer? Note: please use the method of primary school, not quadratic equation

Subtract 0, divide 1
81-1 = 80, now calculate the integer below 9 by yourself:
Since 80 = 64 + 16
This integer is 8