Simplify using order of operations 15-(12-2.5)+9

14.5

Step-by-step explanation:

15 - (12 -2.5) + 9

1. Solve the Parenthesis first

12 - 2.5 = 9.5

So now we get 15 - 9.5 + 9

2. Solve the minus first

15 - 9.5 = 5.5

So now we get 5.5 + 9

3. Add

5.5 + 9 = 14.5

x =±sqrt(1/3)

step-by-step explanation:

x+4/6x=1/x

multiply each side by 6x to get rid of the fractions

6x*(x+4/6x)=1/x*6x

distribute

6x^2 +4 = 6

subtract 4 from each side

6x^2 +4-4 = 6-4

6x^2 =2

divide by 6

6x^2/6 = 2/6

x^2 = 1/3

take the square root of each side

sqrt(x^2) = ±sqrt(1/3)

x =±sqrt(1/3)

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step-by-step explanation: