book Maths Puzzle Numerical Ability

namethe sets of numbers to which each number belongs. -0.002

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log7 + log (n - 2) = log 6n

log516 - log52t = log52

log5m = log5125

logy = log16 + log49

log6(b2 + 2) + log62 = 2


logy = log16 + log49
Given the following two expressions ;-

ax+by = e and
cx+dy = g

Solve for x & y.