Please Help! Look at the picture attached.

23-x=5

X= 18

that's the answer

there would be 365 different 4 digit numbers

step-by-step explanation:

i belive that it is 365 because i asked google

a complex number is a number that can be expressed in the form a + bi, where a and b are real numbers, and i is a solution of the equation x2 = −1. because no real number satisfies this equation, i is called an imaginary number. has no real solution, since the square of a real number cannot be negative.