Add 1 to both sides:
In cases like this, we have to remember that a root is always positive, so we can square both sides only assuming that
Under this assumption, we square both sides and we have
The solutions to this equation are
But since we can only accept solutions greater than -1, we discard 
and accept 
.
In fact, we have
and
which is the only solution.
1/u = 1/f -1/v
1/v = 1/u + 1/f
Step-by-step explanation:
1. Distribute the -2. multiply-2 with 5x and 8. it will be -10x-16=14+6x. For me, i make small numbers negative or positive than big ones. Add 16 to both sides. it will be -10x=30+6x. Subtract 6x. -10x-6x=-16x. Divide both sides by 16. x=30/16= 1 and 14/16
Answer:
s = 2/3
Step-by-step explanation:
15(s - 3) = 12s - 43
15s - 45 = 12s - 43
15s - 12s = -43 + 45
3s = 2
s = 2/3
The answer is 13/250 is 5.2% as a fraction
