0=3+4*sin(2x)

Solution for 0=3+4*sin(2x) equation:

Simplifying
0 = 3 + 4sin(2x)

Remove parenthesis around (2x)
0 = 3 + 4ins * 2x

Reorder the terms for easier multiplication:
0 = 3 + 4 * 2ins * x

Multiply 4 * 2
0 = 3 + 8ins * x

Multiply ins * x
0 = 3 + 8insx

Solving
0 = 3 + 8insx

Solving for variable 'i'.

Move all terms containing i to the left, all other terms to the right.

Add '-8insx' to each side of the equation.
0 + -8insx = 3 + 8insx + -8insx
Remove the zero:
-8insx = 3 + 8insx + -8insx

Combine like terms: 8insx + -8insx = 0
-8insx = 3 + 0
-8insx = 3

Divide each side by '-8nsx'.
i = -0.375n-1s-1x-1

Simplifying
i = -0.375n-1s-1x-1