решите уравнение
1 ) (x+12.4)/8.3=12.4
2) (x-23.74)-2=1737
3 (3.5x+2.8x+3.7x=26.5
4 20.402/(x-2.96)=5.05

1) х+12,4=12,4*8,3х+12,4=102,92х=102,92-12,4х=90,522)х-23,74=1737+2х-23,74=1739х=1739+23,74х=1762,743)10х=26,5х=26,5:10х=2,654)х-2,96=20,402:5,05х-2,96=4,04х=2,96+4,04х=7