exam Maths Puzzle Numerical Ability

How do you solve in order...
(6,0),(3,2)???? It is in Writing Equations andd it has to have three different steps.

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exam Other Question

the answer is 42 from the back of the book. I wrote the problem as: 5/6 times x plus 7 equals n. I tried working this equation but got stuck multiplying 5/6 times x then adding 7. two angles are complementary. one angle is 10degr. less than 9 times the other. find the measure of each angle.