If 11x + 8 ≥ 7 + 3x ≥ 9x –
13; find x
Solution
11x + 8 ≥ 7 + 3x and 7 + 3x ≥ 9x - 13
11x – 3x ≤ 7 - 8 and 7 +13 ≤
9x - 3x
8x ≤ -1 and 20 ≤ 6x
8x ≤ -1
and 20 ≤ 6x
8
8 6
6
x ≤ -1/8 and 10/3 ≤ x
x ≤ -1/8 and x ≥ 10/3
TRY THIS…………….
If 14x + 8 ≥ 7 + 5x ≥ 11x –
20; find x
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