exam Maths Puzzle Numerical Ability

If x represent the number in each case: 3 more than a number is 7.
will the answer be 3x=-7

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exam Other Question

Can you transform the inequality into and equivalent inequality with y on one side and then graph it.
y-2x≤-3 how can i find the answer by using long division?
(x^2+1/2X-3/16)/(X+3/4)