exam Maths Puzzle Numerical Ability

Find the exact solution to the equation 3^x+5 = 9^x.

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exam Other Question

I need help with story problems

Solve the problem and show solution used......In a town election the winning candidate had 220 more votes than the loser. If 810 votes were cast in all how many did each candidate receive?

thanks
heather how do you graph and list several solutions with this problem?

y>=x+3