Question

Solve for x. Thanks!

Answer 1

The answer would be a

Answer 2

x =
`(2T)/(nd)` - a

Explanation:

Multiply both sides by 2 to eliminate the fraction

2T = n(a + x)d

Since n and d are both multipliers, divide both sides by nd

`(2T)/(nd)` = a + x

Isolate x by subtracting a from both sides, hence

x =
`(2T)/(nd)` - a