Final answer:
To isolate the variable in the equation 5.6j - 0.12 = 4 + 1.1j, you need to subtract the same value from both sides of the equation to group the variable terms together, simplify the equation by combining like terms, and then divide both sides by the coefficient of the variable to isolate j.
Step-by-step explanation:
To isolate the variable in the equation 5.6j - 0.12 = 4 + 1.1j, we need to perform the following step:
- Add or subtract the same value from both sides of the equation to group the variable terms together. In this case, we can subtract 1.1j from both sides to eliminate the variable on the right side of the equation.
- Simplify the equation by combining like terms. On the left side, we have 5.6j - 1.1j, which equals 4.5j. On the right side, we have 4 - 0.12, which equals 3.88.
- Divide both sides of the equation by the coefficient of the variable. Here, we divide both sides by 4.5 to isolate j. The equation becomes j = 3.88/4.5.
Therefore, the step that could be used to help isolate the variable in the given equation is to divide both sides by the coefficient of the variable.