exam Maths Puzzle Numerical Ability

five times the diffrence of a number and one yields the same result as twice the same number increase by three

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exam Other Question

Given m of angle ABC = m of angle DEF
and m of angle 1 = m of angle 4

Prove m of angle 2 = m of angle 3 Simplify.
-7[27-(12-39)]=
Is the answer to this 273-189-84 ??
I a close or way off the planet??