Question

6.1/3.9 = 2.8x/x+8.1
solve for x

Answer 1

0.89

Explanation:

6.1/3.9=28/10x/x+81/10

61/39=28x(x)/10+8.1

61/39-81/10=28x(x)/10

610/390_3159/390=28x(x)/10

2469/390=28x(x)/10

2469/390=14/5x(x)

2.51=14/5x

12.55=14x

x=0.89