Solve the two-step equation.

-9x + 0.4 = 4

Which operation must be performed to move all the constants to the right side of the equation?

x = - 0.4

Step-by-step explanation:

We have the equation:

-9x + 0.4 = 4

First, the operation to move all the constants to the right side is subtraction since we would have to subtract 0.4 from each side, let's see this:

Now, we have all the constants on the right side of the equation.

Now, the operation we need to perform to isolate the variable is division (since the x has a - 9 that is being multiplied by x) we need to do the opposite operation:

Thus, the answer to this equation is x = - 0.4

x = - 0.4

multi-step equation

Step-by-step explanation:

subtract 0.4 from 4 and 0.4 so it cancells out,

0.4 - 0.4 = 0 (cancelled out)

4 - 0.4 = 3.6

then bring down - 9x and divide - 9 from both sides

-9/-9 = 0 (cancelled out)

3.6 / - 9 = - 0.4

x = - 0.4