Since a line =180 degrees you could set it up as (180-85) and you would get <u><em>95.
Hope this helps!!!</em></u>
Answer:
3*(5*x-7)-(15*x-21)=0
Step-by-step explanation:
3 • (5x - 7) - (15x - 21) = 0
Step 2 :
Equation at the end of step 2 :
0 = 0
Step 3 :
Equations which are always true :
I attached a photo of the work.
If you have any further questions feel free to ask.
Hope this helps
Your answer is 3/4. remove parentheses, multiply both sides by 4, collect the like terms, move terms, collect the like terms again and calculate, then divide both sides by -12