What is x
−9.2= 2.5 − 3.9 x

3.08 = x

Step-by-step explanation:

-9.2 = 2.5 - 3.9x

-9.2 + (-2.5) = -3.9x

-12 = -3.9x

-12/-3.9 = x

3.08 = x

Hope this helps!

there still no table

let's call the solutions x₁ = (5 - 2√7)/3 and x₂ = (5 + 2√7)/3

then the equation is (x-x₁)(x-x₂) = 0

if you fill that in you get a lot of numbers which you can recognize as ax²+bx+c=0.

step-by-step explanation:

you can see that a=1 (there is just an x²)

b = (-5 -2√7 + 2√7 - 5)/3 = -10/3

c = -2√7)/3 ) * (-5+2√7)/3) = -1/3

so your answer is 3x^2 – 10x – 1 = 0