Question

Решите срочно пжл
0,81х-71=1,11х+1
И второй:
9х+4х=-26

Answer 1

0.81х - 71 = 1.11х + 1
0.81х - 1.11х = 1 + 71
0.3х = 72
х = 240

9х + 4х = - 26
13х = - 26
х = -2