Question

is 1/2 is subtracted from a number and the difference is multiplied by 4 the result is 5 what is the number

Answer 1

First let the number be x.
Now 1/2 is subtracted, so (x - ½)
Now multiply it by 4, it becomes 4(x - ½)

The equation becomes
4(x - ½) = 5
4x - 2 = 5
x = 7/4