katranso katranso
  • 16-11-2020
  • Mathematics
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21x/2 = 2(x-1)+3

I need this quick if that’s ok

21x2 2x13 I need this quick if thats ok class=

Respuesta :

415293
415293 415293
  • 16-11-2020

step-by-step answer:

21x/2=2x+1

multiply both sides by 2

21x/2 · 2=2x·2+1·2

simplify

21x=4x+2

subtract 4x from both sides

21x- 4x=(4x)+2-(4x)

divide both sides by 17

17x=2

17   17

simplify

x=2/17

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