0.4x – 1.2 = 0.15x + 0.8

x = 8

Step-by-step explanation:

0.4x - 1.2 = 0.15x + 0.8

Subtract 0.15x from both sides

0.4x - 1.2 -0.15x  = 0.15x + 0.8 - 0.15x       {Combine like terms}

0.4x - 0.15x - 1.2 = 0.8

          0.25x - 1.2 = 0.8        {Add 1.2 to both sides}

                  0.25x = 0.8 + 1.2

                 0.25x = 2.0         {Divide both sides by 0.25}

                        x = 2/0.25

im here

step-by-step explanation:

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)