Question

Solve the equation:

9 (x − 9)−3 = −4 (2x + 4)

4

-4

100

68

Answer 1

Explanation:

Applying BODMAS here;

We first solve what is in the brackets:

9x - 81 -3 = -8x - 16

We then put the like terms together:

9x + 8x = -16 + 81 + 3

We then do the addition:

17x = -16 + 84

We then do the subtraction:

17x = 68

Simplifying this gives:

x =
`(68)/(17)` = 4