exam Maths Puzzle Numerical Ability

Please help me. I need to know how to plugin a problem for Point-Slope equations. Please use this as an example. (3,5), m= -1

Andrew

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exam Other Question
justify each step of the solution:
3(x-4)+10=7
3x-12+10=7
3x-2=7
3x-2+2=7+2
3x=9
3x/3=9/3
x=3
thanks and i hope you can help How do I solve this equation?

4 to the power of x times two to the power of x squared, equal to 27 to the power of x.