Question

решите неравенство x+3<5,7(x+10)+2 2/5

Answer 1

x + 3 < 5,7(x + 10) + 2 2/5   |·10
10x + 30 < 57(x + 10) + 24
10x + 30 < 57x + 570 + 24
57x - 10x > 30 - 570 - 24
47x > -564
x > -12
Ответ: x∈(-12; +∞)