Q. Solve the equation for all values of x.∣4x+7∣=3xAnswer: x=
Understand absolute value equation: Understand the absolute value equation |\(4x+7|=3x").The absolute value of a number is its distance from zero on the number line, regardless of direction. Therefore, |\(4x+7|") can be either \(4x+7") or -(\(4x+7)") depending on the value of x").
Set up two equations: Set up two separate equations to solve for \(x, one for each case of the absolute value.Case 1: 4x+7=3xCase 2: −(4x+7)=3x
Solve first case: Solve the first case 4x+7=3x. Subtract 3x from both sides to isolate x. 4x+7−3x=3x−3x x+7=0 Subtract 7 from both sides to solve for x. x=−7
Solve second case: Solve the second case −(4x+7)=3x. First, distribute the negative sign inside the parentheses. −4x−7=3x Add 4x to both sides to get all x terms on one side. −4x−7+4x=3x+4x−7=7x Divide both sides by 7 to solve for x. x=−7/7x=−1
Check first solution: Check both solutions in the original equation to ensure they are valid.For x=−7:∣4(−7)+7∣=3(−7)∣−28+7∣=−21∣−21∣=−2121=−21, so x=−7 is not a solution.
Check second solution: Check the second solution x=−1 in the original equation.∣4(−1)+7∣=3(−1)∣−4+7∣=−3∣3∣=−33=−3, so x=−1 is not a solution either.
Conclude no solutions: Since neither of the found values for x satisfy the original equation, we conclude that there are no solutions to the equation ∣4x+7∣=3x.
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