how many solutions does 3i+2i-4=18i

To solve this equation, we simplify the expression on the left side by combining like terms:

3i + 2i - 4 = 18i
(3 + 2)i - 4 = 18i
5i - 4 = 18i

We can now isolate the variable i by subtracting 5i from both sides:

-4 = 18i - 5i
-4 = 13i

Finally, we solve for i by dividing both sides of the equation by 13:

-4/13 = i

Thus, there is exactly one solution for i, which is i = -4/13.

To solve the equation 3i + 2i - 4 = 18i, we can first simplify it by combining like terms:

5i - 4 = 18i

Next, we can isolate the term with the variable by subtracting 5i from both sides:

-4 = 13i

Finally, divide both sides by 13 to solve for i:

-4/13 = i

Therefore, the equation has a single solution, and it is i = -4/13.