Solve ∣2x+1∣=7|2x + 1| = 7.

Absolute Value Equations

9. Inequalities and Absolute Value / Absolute Value Equations / 문제 3

문제 3

Solve $∣ 2 x + 1 ∣ = 7$ .

$x equals 7$ or $x = - 1$

$x equals 3$ or $x = - 3$

$x equals 6$ or $x = - 4$

$x equals 3$ or $x=-4$