Question

Help me plz 80,1y - 10,у + 4,7 = 81,7 45,7x + 0,3x - 2,4 = 89,6

Answer 1

80.1y - 10y = 81.7 - 4.7

70.1y = 77

y = 11/10.1 = 10/11

 

45.7x+0.3x = 89.6 + 2.4

46x = 92

x = 2 

Answer 2

80.1у-10.1у+4.7=81.7

70у=81.7-4.7

70у=77

у=77:70

у=1.1

45.7х+0.3х-2.4=89.6

46х=89.6+2.4

46х=92

х=92:46

х=2