Решить уравнения.b+15=400-300,c-24=100-25,35+15+x=90

b+15=400-300
b+15 = 100
b = 100 -15
b = 85
85 + 15 = 400-300

c-24=100-25
c-24 = 75
c = 75 +24
c = 99
99 - 24 = 100 - 25

35+15+x=90
50+x=90
х = 90 - 50
х = 40
35 + 15 + 40 = 90