Answer:
w = 5/7
Step-by-step explanation:
We move all terms to the left:
15/7-(3w)=0
We multiply all the terms by the denominator
-3w*7+15=0
multiply elements
-21w+15=0
We move all terms containing w to the left, all other terms to the right
-21w=-15
w=-15/-21
w=5/7
l
a: 4.12310563
b: 15.5563492
c: 17.8885438
6 3/4
the other one is (5, -5)