PeytonmarieV605535 PeytonmarieV605535
  • 25-10-2022
  • Mathematics
contestada

2 x— =-------7 x+ 10x = ???

Respuesta :

MilamarieD546757 MilamarieD546757
  • 25-10-2022

Answer:

x = 4

Explanation:

Given the expression;

2/7 = x/x+10

Cross multiply

2(x+10) = 7x

Expand the bracket

2x + 20 = 7x

Subtract 7x from btoh sides

2x+20-7x = 7x - 7x

2x-7x+20 = 0

-5x + 20 = 0

-5x = -20

Divide both sides by -5;

-5x/-5 = -20/-5

x = 4

hence the value of x is 4

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