Q. Solve for all values of x.x−3x−7=x−2Answer: x=
Set Up Equation: First, we need to set up the equation given by the problem: (x−7)/(x−3)=(−2)/x. To solve for x, we will cross-multiply to eliminate the fractions.
Cross-Multiply: Cross-multiplying gives us: x - \(7) * x = (−2) * (x - 3)\. This will allow us to create a quadratic equation.
Expand Equation: Expanding both sides of the equation, we get: x2−7x=−2x+6. This simplifies the equation and prepares it for further manipulation.
Move Terms: Next, we will move all terms to one side of the equation to set it equal to zero: x2−7x+2x−6=0.
Factor Quadratic: Combining like terms, we get: x2−5x−6=0. This is the quadratic equation we need to solve for x.
Set Equal to Zero: To solve the quadratic equation, we can factor it: (x−6)(x+1)=0.
Solve for x: Setting each factor equal to zero gives us the potential solutions for x: x−6=0 or x+1=0.
Check Solutions: Solving each equation for x gives us the solutions: x=6 or x=−1.
Check x=6: However, we must check these solutions against the original equation to ensure they do not make any denominator equal to zero, as that would be undefined.
Check x=−1: Checking x=6: The original equation's denominators are (6−3) and 6, neither of which is zero, so x=6 is a valid solution.
Check x=−1: Checking x=6: The original equation's denominators are (6−3) and 6, neither of which is zero, so x=6 is a valid solution.Checking x=−1: The original equation's denominators are (−1−3) and −1, neither of which is zero, so x=−1 is also a valid solution.
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