Question

1414 решите уравнение
1) 0,8*(9+2х)=0,5*(2-3х). 2)0,5*(х+3)=0,8*(10-х)​

Answer 1

1) 7.2+1.6х＝1-1.5х

1.6х+1.5х＝1-7.2

3.1х＝-6.2

Х＝-2

2)0.5х+1.5＝8-0.8х

0.5х+0.8х＝8-1.5

1.3х＝6.5

Х＝5