kaihern666 kaihern666
  • 24-08-2018
  • Mathematics
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ab over 2 equal 2a minus 1,express a in terms of b

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tramserran
tramserran tramserran
  • 24-08-2018

[tex] \frac{ab}{2} [/tex] = 2a - 1

2([tex] \frac{ab}{2} [/tex]) = 2(2a - 1) multiplied both sides by 2

ab = 4a - 2 distributed the 2 on the right side

ab - 4a = -2 subtracted 4a from both sides

a(b - 4) = -2 factored out "a" from the left side

a = [tex] \frac{-2}{b - 4} [/tex] divided (b - 4) on both sides

Answer: a = [tex] \frac{-2}{b - 4} [/tex]

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