Q. Solve the equation for all values of x.∣x+6∣=2xAnswer: x=
Absolute Value Equation: We have the equation ∣x+6∣=2x. To solve this, we need to consider two cases because the absolute value function yields the same result for both the positive and negative values of its argument.
Case 1: Non-Negative Expression: Case 1 - When the expression inside the absolute value is non-negative, we can remove the absolute value bars without changing the sign of the expression. So, we have:x+6=2xNow, we solve for x.Subtract x from both sides to get:6=x
Case 2: Negative Expression: Case 2 - When the expression inside the absolute value is negative, we remove the absolute value bars and change the sign of the expression. So, we have:−(x+6)=2xSimplify and solve for x:−x−6=2xAdd x to both sides to get:−6=3xNow, divide both sides by 3 to get:x=−2
Solution Verification for x=6: We need to check if our solutions satisfy the original equation. For x=6, we substitute into the original equation:∣6+6∣=2(6)∣12∣=1212=12, which is true.
Solution Verification for x=−2: Now, we check the solution x=−2: ∣−2+6∣=2(−2) ∣4∣=−4 4=−4, which is false. Therefore, x=−2 is not a solution to the equation.
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