Question

c) 5,31x+5,(6)= 8,31x-3,(3);​

Answer 1

Răspuns:

$x = \frac{9}{5}$

Explicație pas cu pas:

5,31x + 5,(6) = 8,31x - 3,(3)

5,(6) + 3,(3) = 8,31x - 5,31x

$\frac{56-5}{9} + \frac{33-3}{9} = 5x$

$\frac{51 + 30}{9} = 5x$

81 = 45x

$x = \frac{81}{45} = \frac{9}{5}$