exam Maths Puzzle Numerical Ability

Solve and check
10(x-7)-3x=x+2

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exam Other Question

NBC asked a sample of VCR owners to record “Late Night with David Letterman” on their VCRs.
Of the 125 VCR owners surveyed, 83 either “gave up or screwed up” because they did not
Use given functions to find all values of x that satisfy the required inequality?
f(x)=4x^2 g(x)=9x-2; f(x)< g(x)