This is because simplifying the equation before solving it will lead you to the answer at a much faster rate. For example, in the given equation, the long way would be to distribute 2 to (x+3). Then, you transpose them and combine like terms. Until you get to x + 3 = 8. But if you simplify it first, you will see that it is straightforward. It will lead you to the answer right away which is x + 3 = 8. It saves you from the hassle of doing more algebra :)
Answer:
4
Step-by-step explanation:
Let us plug x in to the equation given that it equals 6.
4(6-5)=
4*1=
4
<em>Hope this helps! :)</em>
Answer:

Step-by-step explanation:
Given the expression

solving the expression



so the expression becomes


Thus,

2. Definition of supplementary angles
I’m not too good with proofs but hopefully at least one answer helped lol sorry