Question

Упростите выражения:
50,8а - 12,9а + 48,1а
6,8x + 4,2x - 10,3x

Answer 1

1) =a(50,8-12,9+48,1)=а(98,9-12,9)=86а
2) =х(6,8+4,2-10,3)=х(11-10,3)=0,7х

Answer 2

50.8а-12.9а＋48.1а＝86а
6.8х＋4.2х-10.3х=0.7х