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Mathematics for IGCSE & O level - Inequalities (Section 2 - No. 23)
Solve the inequality: -2x + 1 ≤ 5.
x ≤ -2
x ≥ -2
x ≤ 3
x ≥ 3
Forklaring
-2x ≤ 4, dividing by a negative number changes the sign, so x ≥ -2.
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