Question

Hundred plus the product of a number and -2 equals 50. What is the number

Answer 1

The number is 25

Explanation:

We let the number be x. The product of x and -2 is;

x(-2) = -2x

a hundred plus the above product is;

100 + (-2x) = 100 - 2x

The above result is said to be equal to 50;

100 - 2x = 50

2x = 100 - 50

2x = 50

x = 25