Question

7x-7/79 = 68x+8Find X.

Answer 1

Answer:

x = -639 / 4819   (x = -0.1326 [rounded])

Step-by-step explanation:

7x - 7/79 = 68x + 8

{subtract 7x from both sides to begin to isolate x}

       7x - 7/79 = 68x + 8

       -7x             - 7x

            - 7/79   = 61x + 8

{subtract 8 from both sides to isolate x}

- 7/79   = 61x + 8  

- 8                   -8

{8 = 632/79}

- 639 / 79 = 61x

{divide both sides by 61 to isolate x}

-639 / 79  = 61x

÷ 61            ÷61                  $-\frac{639}{79}$   ÷ $\frac{61}{1}$ =  $-\frac{639}{79}$ * $\frac{1}{61}$ =   $-\frac{639}{4819}$

-639 / 4819 = x

(-639/4819 ≈ -0.1326 [rounded] )

{updates in bold}

Answer 2

Answer:

$7x - \frac{7}{79} = 68x + 8 \\ 7x - 68x = 8 + \frac{7}{79 } \\ - 61x = \frac{639}{79} \\ x = \frac{639}{79 \times ( - )61} \\ x = \frac{639}{ - 4819} \\ = - 0.132.......$