If 12x + 8 ≥ 26 + 3x ≥ 9x – 10; find x.
Solution
12x + 8 ≥ 26 + 3x and 26 + 3x ≥ 9x - 10
12x – 3x ≤ 26 - 8 and 26 +10 ≤ 9x - 3x
9x ≤ 18 and 36 ≤ 6x
9x
≤
18 and 36 ≤ 6x
9 9
6 6
x ≤ 2 and 6
≤
x
x ≤ 2
and x ≥ 6
TRY THIS…………….
If 12x + 34 ≥ 7 + 3x ≥ 9x – 22; find x
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