exam Maths Puzzle Numerical Ability

Determine whether 3 is a solution of the equation 9 x +5 = 30

Again can someone help please?

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exam Other Question

9usquared-9u+2 In the month of July, one U.S. dollar was worth 43.52 Indian rupees. One U.S. dollar was also worth 108.75 Japanese yen. How many yen could you exchange for one rupee in July?

A) 0.3954 yen
B) 2.4989 yen
C) 3.6582 yen
D) 152.27 yen