2008
Mathematics
67ca00ce0c643c71d77dee1f
Find the range of values of x which satisfy the inequalities 4x - 7 ≤ 3x and 3x - 4 ≤ 4x
A.
-4 ≤ x ≤ 7
B.
-7 ≤ x ≤ 4
C.
x ≥ -7
D.
-7 ≤ x ≤ 6
Correct Answer: -4 ≤ x ≤ 7
Explanation
4X - 7 ≤ 3X and 3X - 4 ≤ 4X 4X - 3X ≤ 7 and 3X - 4X ≤ 4 X ≤ 7 and -X ≤ 4 = X ≥ -4 Range -4 ≤ x ≤ 7
4X - 7 ≤ 3X and 3X - 4 ≤ 4X 4X - 3X ≤ 7 and 3X - 4X ≤ 4 X ≤ 7 and -X ≤ 4 = X ≥ -4 Range -4 ≤ x ≤ 7THIS WEEK's
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