Question

1. What would be the first step in solving the equation below for r ?

A = 4r
a add 4 to both sides
b subtract 4 to both sides
c divide 4 to both sides
d multiply 4 to both sides

Answer 1

C; multiply 4 to both sides

Explanation:

When you want to solve for a variable, you always want to isolate it.

So, to move 4, we have divide:

`(A)/(4)` =
`(4r)/(4)`.

The 4 in 4r is "one'd" out, and now we have 1r, or simply r.

Now, we have r = A/4

Answer 2

The first step into solving this equation should be, c dividing by both sides