Which number makes the following number sentence true 3+6=6+

3

Step-by-step explanation:

3 + 6 = 6 + 3

Step-by-step explanation:

3 + 6 = 6 + y

9 = 6 + y

y + 6 = 9

y + 6 - 6 = 9 - 6

y = 3

(f - g)(x) = 5x^3 - 3

step-by-step explanation:

rearrange these functions vertically, with like terms in separate columns:

f(x) = 5x^3 - 2

g(x) =         +1

now subtract, column by column:

(f - g)(x) = 5x^3 - 3

step-by-step explanation:

f(gx)=f(1/x+2)

=(1/x+2)+2

=(1+2x)/2+2

=(1+2x+4)/2

= (2x+5)/2