Assuming that is the natural logarithm (logarithm to base e), the derivative of ln x is 1/x.For other bases, the derivative of logax = 1 / (x ln a), where ln a is the natural logarithm of a.Natural...
You cannot, in general, solve one equation with two unknown variables.x - y = x - x2Subtract x from both sides: - y = - x2Change signs: y = x2And that is as far as you can go.
To "Solve" for Y which means get it on one side of the equals sign and everything else on the other side, write out your equation. Y + X = 3 You want to get Y by itself so you would want to remove...
Solve this simultaneous equation by elimination:x+y = -4x-y = 2Add both equations together:2x = -2Divide both sides by 2 to find the value of x:x = -1Substitute the value of x into the original...