52+1 59+1 68-1 70-1 90+3 93-3 30+20 50-10 85-80 73-73

Question

Математика: 52+1 59+1 68-1 70-1 90+3 93-3 30+20 50-10 85-80 73-73

Amyy1 · Accepted Answer

2 (11 х-5)-17 х=55    5 (8 х+3)-12=83   7 (2 х+9)+3 х=114 3 (4 х+13)-25=74
22 х-10-17 х = 55    40 х+15-12=83    14 х +63+3 х=114 12 х+39-25=74
5 х=55+10   40 х=83-15+12   17 х=114-63 12 х=74-39+25
5 х=65   40 х=80   17 х=51 12 х=60
х=65:5 х=80:40    х=51:17 х=60:12
х=13   х=2 х=3 х=5

MOGZ ответил

52+1
59+1
68-1
70-1
90+3
93-3
30+20
50-10
85-80
73-73