Step-by-step explanation:
since all angles add up to 180:
(8x-1)+(3x+4)+(3x+9)=180
add like terms:
14x+12=180
x=12
Hope that helps :)
<u> </u><u>Answer: </u><em>1. 4 divided by 1/6 = </em>24 <em> 2. (3/4) / 6 =</em>0.125
Answer:-2
Step-by-step explanation:
Let's say that number is hmmm "a"
now.. twice "a" is 2*a or 2a
4 less than that is " 2a - 4"
now, the product of those two fellows is 286, well ok
a( 2a - 4) = 286
thus