exam Maths Puzzle Numerical Ability

please help
find an equation for the line that contains the point (3,5) and has slope m=-4.
Express the equation in slope-intercept form.

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exam Other Question

please help me solve this is what I got 5x-3y=13
4x-3y=11 My answer is x=3 and y =1 I do not think this is correct. please help. The sum of the digits of a 2-digit number is 7. If 27 is added to the number, the resulting number has the same digits in the reverse order. What is the number?