Solve linear Inequality Symbolically

Bobosharif S. answered • 02/17/18

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Mathematics

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-7≤(1-4x)/7<12 (multiply by 7)

-49≤1-4x<84 (add -1 (to all sides))

-1-49≤-4x<84-1

-50≤-4x<83 (divide by -4)

-83/4≤x<25/2.

-20.75≤x<12.5

[-20.75, 12.5]

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