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3x-2y=7. y=-3/2x+7/2. mn=-1. m=2/3. m=dy/dx. 2/3=4-b/3-a. 4-b=2-2/3a.b=2/3a+2

Rearrange first equation so we can eliminate one variable: y= - 4 -3x We can then plug this into the second equation so we get rid of the y's and just have x's: 3x-4(-3x-4)=6Simplify this: 3x + 12x+16=6...

The current is split at electrical junctions. The total current entering a junction is equal to the total current exiting a junction. More current passes through the path with least resistance.

3 simple steps: Expand out brackets. Group like terms together. Make x the subject of the equation.

Firstly, you need to take into account that each person is different, and the only way for you to understand what works best for you is by practicing. However, there are a few things you can do that will ...