Question

Solve this inequality: the sum of twice a number and four is at least 16

Answer 1

x ≥ 6

Explanation:

the equation for this is 2x (the sum of twice a number) + 4 (and 4) ≥ 16 (is at least 16

2x + 4 ≥ 16

subtract 4 from both sides (4 and 16)

you get 2x ≥ 12

divide both sides by 2 (2x and 12)

you get x ≥ 6

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