# Rearrange this formula to make x the subject?

a = b + 5x/8

### 8 Answers

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- Engr. RonaldLv 72 months ago
[a = b + 5x/8]8

8a = 8b + 5x

8a - 8b = 5x

........8a - 8b........... 8(a - b)

x = -------------- or ----------------- answer//

..........5 .................... 5

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- llafferLv 72 months ago
as written:

a = b + 5x/8

Subtract b from both sides:

a - b = 5x/8

Then multiply both halves by (8/5):

(8/5)(a - b) = x

- billrussell42Lv 72 months ago
you really have to learn simple algebra

a = b + 5x/8

8a = 8b + 5x

5x = 8a – 8b

x = (8a – 8b) / 5

or

x = (8/5)(a – b)

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