Question

решите уравнение пж 1) 31x-17x+56+54x +24x=740 2) 2472:(15-x:48)=206

Answer 1

1).....
92х+56=740
92х=740-56
92х=684
х=171\23

2)...
2472:(15-(х\48)=206
2472*(49\720-х))=206
118656=206(720-х)
576=720-х
х=144

Answer 2

1) 31x-17x +56+54x +24x =740
71x + 80 =740
71x =660
$71 = \frac{660}{71}$
$\times = 9 \frac{21}{71}$