Question

resolva as inequacoes 3×(5-x)-3(1-2x)menor ou igual42

Answer 1

3 (5 - x) - 3 (1 - 2x) < 42
15 - 3x - 3 + 6x < 42
15 - 3 - 3x + 6x < 42
12 + 3x < 42
3x < 42 - 12
3x < 30
x < 30/3
x < 10