Question

Решите уравнение:

(2.8 - 0.1х) * 3.7 = 7.4

Answer 1

(2.8-0.1х)*3.7=7.4
2.8-0.1х=7.4:3.7
2.8-0.1х=2
-0.1х=2-2.8
-0.1х=-0.8
х=-0.8:(-0.1)
х=8