Solve the two-step equation. -0.45x + 0.33 = -0.66 what is the solution? x = -2.2 x = -1.4 x = 1.4 x = 2.2

-0.45x + 0.33 = -0.66

-0.45x = -0.99

x = 0.99/0.45 = 2.2

x = 2.2

Step-by-step explanation:

-0.45x + 0.33 = -0.66

1)  -0.45x + 0.33 = -0.66

               - 0.33     -0.33

You have to get the variable on one side of the equation by itself, so you move over the 0.33.

* The 0.33 cancels out because of the positive and negative being combined.*

-0.45x = -.99

2)  -0.45x = -0.99

Now you divide -0.45 by -0.99 to get the variable x by itself.

3)  -0.45 divided by -0.99 is positive 2.2.

4) x = 2.2

a4 - 3a2 - 1

step-by-step explanation:

step   1   :

equation at the end of step   1   :

  ((a4) -   3a2) -   1

step   2   :

trying to factor by splitting the middle term

2.1     factoring   a4-3a2-1  

the first term is,   a4   its coefficient is   1 .

the middle term is,   -3a2   its coefficient is   -3 .

the last term, "the constant", is   -1