exam Maths Puzzle Numerical Ability

give detailed step by step of how to use the slope and y-intercept to write an equation and how to draw a graph if I want to write the equation and draw a graph from the detailed instructions.

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exam Other Question
the perimeter of a rectangle is twice the sum of its length and its width. the perimeter is 34 meters and its length is 2 meters more then twice its width. What is its length? Can you show me how to simplify or solve for "x" in the following equations?

3(x+2)=-2(x+4)



2(x+1)=4-3(2x+1)



2(x+1)-3(x+7)=2



-3.6x+3.1=3(5.2-1.2x)


I would appreciate the help! Thank You =)