exam Maths Puzzle Numerical Ability

solving inequalities: 1/7 (42x - 21) >9
42x-21 > 63 i.e.,42x > 84 i.e.,x > 2

Read Solution (Total 0)

exam Other Question

Assume that y varies directly as x. If y =4 when x = 1/2, find y when x =2 Write the quadratic equation with a lead coefficient of 1 whose roots are 1+3i and 1-3i.

Could someone show me how to this step-by-step, please?