Question 365869
0.3x+1 ≤ 0.7x-4 
Add 4 to both sides
Subtract 0.3x from both sides:
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5 <= 0.4x
Divide both sides by 0.4 to get:
x >= 50/4
x >= 12 1/2
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{x |x >= 12.5}
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Cheers,
Stan H.