Question

3x+3(x-1)<-18

Answer 1

3 x + 3 ( x - 1 ) <= 18

3 x + 3 x - 3 <= 18

6 x - 3 <= 18 Add 3 to both sides

6 x - 3 + 3 <= 18 + 3

6 x <= 21 Divide both sides by 6

x <= 21 / 6

x <= 3 * 7 / ( 3 * 2 )

x <= 7 / 2