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5x - 3x -3 + 7 ≥ 0
5x- 3x ≥ 0 + 3 -7
2x ≥ -4
x ≥ -4/2
x ≥ -2
2. 3(3x + 2/3) = 5(2x -1/4)
9x + 2 = 10x - 5/4
9x - 10x = -5/4 - 2
-x = -5/4 - 8/4
-x =-13/4
x = 13/4