Question

Carilah hp yang memenuhi
a. |2x-7|<3
b. |3x-2|<=4

Answer 1

A) -3 < 2x -7 < 3
= -3+7 < 2x -7+7 < 3+7
=4 < 2x < 10
=4/2 < 2x/2 < 10/2
= 2 < x < 5

b) -4 <= 3x-2 <= 4
= -4 +2 <= 3x-2+2 <= 4+2
= -2 <= 3x <= 6
= -2/3 <= 3x/3 <= 6/3
= -2/3 <= x <= 2

smoga membantu

Answer 2

a) -3 < 2x -7 < 3
= -3+7 < 2x -7+7 < 3+7
=4 < 2x < 10
=4/2 < 2x/2 < 10/2
= 2 < x < 2

b) -4 <= 3x-2 <= 4
= -4 +2 <= 3x-2+2 <= 4+2
= -2 <= 3x <= 6
= -2/3 <= 3x/3 <= 6/3
= -2/3 <= x <= 6