Question

ааааа срочно как решить а×30+28=73​

Answer 1

$a \times 30 + 28 = 73 \\ a \times 30 = 73 - 28 \\ a \times 30 = 45 \\ a = 45 \div 30 \\ a = 1.5$

Answer 2

30•a+28=73
30•a=73-28
30•a=45
a=45/30
a=1,5