We are given the following equation and want to find which value of x will make it true:

Subtract 3 from both sides

Divide both sides by -6

Thus, the value that will make 3-6x=21 is x=-3. Let me know if you need any clarifications, thanks!
~ Padoru
Answer:
Yes
Step-by-step explanation:
If you find the value of all the angles, you'll find that both triangles' angles are 50, 35, and 90 degrees.
(all the angles in a triangle add up to 180)
Answer:
No, he is incorrect because he forgot to multiple the negative by the x, and only multiplied 3 by x instead of -3 by x.
Step-by-step explanation:
The correct re-write of this expression is:
-3x - 30
Answer:
This is incorrect, the correct answer is 7/12
Step-by-step explanation:
Answer:
What is the question?
Step-by-step explanation: