Question

1) 3x > 15;
3) 4x >16;
5) 7x > 3,5;​

Answer 1

1.

$3x > 15 \\ x > 15 \div 3 \\ x > 5$

2.

$4x > 16 \\ x > 16 \div 4 \\ x > 4$

3.

$7x > 3.5 \\ x > 3.5 \div 7 \\ x > 0.5$