Question

Помогите 45.7x + 0.3x - 2.4 =89.6 80.1y - 10.1y + 4.7 = 81.7

Answer 1

45.7x + 0.3x - 2.4 =89.6

46х=89,6+2,4

46х=92

х=92:46

х=2

 

80.1y - 10.1y + 4.7 = 81.7

70у=81,7-4,7

70у=77

у=77:70

у=1,1