Solve: 15 – 2(2x – 1) < 15, x ∈ Z.

0 votes
1 view
asked May 25 in Class VIII Maths by priya12 (-12,524 points)

Solve: 15 – 2(2x – 1) < 15, x ∈ Z.

Please log in or register to answer this question.

1 Answer

0 votes
answered May 25 by navnit40 (-4,678 points)

15 – 2(2x – 1) < 15, x ∈ Z.

⇒ 15 – 4x + 2 < 15

⇒ 17 – 4x < 15

⇒ -4x < 15 – 17

⇒ -4x < -2

⇒ (-4/-4)x  > -2/-4 = 1/2 (Dividing by -4)

∴ x 1, 2, 3, 4, 5,….

∴ Solution set = {1, 2, 3, 4, 5,….}

Related questions