Question

Решите неравенство: -2/5x+3/5<3/2(4x+1)

Answer 1

2x/5 + 3/5< 3/2(4x+1) \frac{3-2x}{5}<6x+1,5 |*5 \\ \\ 3-2x<30x+7,5\\ \\ 3-7,5<30x+2x\\ \\ -4,5<32x\\ x> -4,5:32\\ x>-\frac{9}{64}