Question

which step could be used to help isolate the variable in the following equation? 5.6j - 0.12 = 4 * 1.1j
subtract 0.12 from both sides.
subtract 5.6 from both sides.
subtract 4j from both sides.
subtract 1.1j from both sides.

Explanation:

Step1: Analyze the equation

The given equation is $5.6j - 0.12=4\times1.1j$, which simplifies to $5.6j - 0.12 = 4.4j$. To isolate the variable $j$, we want to get all terms with $j$ on one - side of the equation.

Step2: Consider the options

If we subtract $4.4j$ (which is the same as $4\times1.1j$) from both sides, we can start to isolate $j$. But among the given options, subtracting $1.1j$ from both sides is a step that can be part of the process of getting all $j$ terms together. After subtracting $1.1j$ from both sides, we can further simplify and isolate $j$.

Answer:

Subtract 1.1j from both sides.