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4x = x - 3 First, subtract x from both sides.
4x - x = x -3 - x
Simplify the equation.
3x = -3
Finally, divide both sides by 3.
x = -3/3 = -1
The answer is negative one (-1).
If: 4x = x+15 Then: x = 5
The equation 4x + 5 = 2 has the solution 4x = -3 and x = - 3/4 (minus 3/4).
There are 2 roots to the equation x2-4x-32 equals 0; factored it is (x-8)(x+4); therefore the roots are 8 & -4.
x3 + 6x2 - 4x - 24 = (x + 6)(x2 - 4) = (x + 6)(x + 2)(x - 2)
The inverse of an equation is rewriting it as a function of the other variable. Simply solve the equation for x instead of y. y=9x can be written as x= (1/9)y --> fy=y/9◄ y=4x+6 (or 4x+6=y) -> 4x=y-6 -> x=(y-6)/4 --> gy=(y-6)/4■