To prepare for school you need 3 notebooks for $1.09 each, 2 boxes of pencils for $2.68 each and a pack of markers for $0.89. Ho
1 answer:
You might be interested in
Answer:
Step-by-step explanation:
25 - 3x = -5(1 - x) - 2x
<u></u>
<u>We have to first get rid of the parenthesis:</u>
==> -5
==> 5x
<u>So now you should have:</u>
25 - 3x = -5 + 5x - 2x
<u>Combine like terms:</u>
25 - 3x = -5 + 5x - 2x
25 - 3x = -5 + 3x
<u>Add 3x to both sides:</u>
25 - 3x = -5 + 3x
+ 3x = + 3x
<u>And you should have:</u>
25 = -5 + 6x
<u></u>
<u>Add 5 to both sides:</u>
25 = -5 + 6x
+5 = +5
30 = 6x
<u>Divide 6 to both sides:</u>
=
5 = x
Let's find , which is essentially what the problem is asking, what
corresponds to an output of 2.
Let's solve below:
- Setting up what we know
- Substituting in
for
(I'm not sure if this is the correct expression for
- Subtract 4 from both sides to make a step to isolate
(what we are trying to find)
- Divide both sides of the equation by 23 to isolate
Thus the input is .