Solve each equation. ∣2x+33x−4∣=1\left| \frac{2x + 3}{3x - 4} \right| = 1 3x−42x+3=1

Ch. 1 - Equations and Inequalities

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Lial 13th Edition

Ch. 1 - Equations and Inequalities

문제 18

2장, 문제 18

Solve each equation. $$\left$| $\frac{2x + 3}{3x - 4}$ $\right$| = 1$

검증된 단계별 안내

Recognize that the equation involves an absolute value expression: $\left| \frac{2x + 3}{3x - 4} \right| = 1$. The absolute value of a quantity equals 1 means the quantity inside the absolute value is either 1 or -1.

Set up two separate equations to solve: $\frac{2x + 3}{3x - 4} = 1$ and $\frac{2x + 3}{3x - 4} = -1$.

Solve the first equation $\frac{2x + 3}{3x - 4} = 1$ by multiplying both sides by the denominator $(3x - 4)$ to get rid of the fraction: $2x + 3 = 3x - 4$.

Solve the second equation $\frac{2x + 3}{3x - 4} = -1$ similarly by multiplying both sides by $(3x - 4)$: $2x + 3 = - (3x - 4)$.

Solve each resulting linear equation for $x$, and check for any values that make the denominator zero (which are not allowed) to ensure the solutions are valid.

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주요 개념

질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.

Absolute Value Equations

An absolute value equation involves expressions within absolute value bars, which represent the distance from zero on the number line. To solve |A| = B, where B ≥ 0, you split it into two cases: A = B and A = -B. This approach helps find all possible solutions that satisfy the equation.

Rational Expressions

A rational expression is a fraction where the numerator and denominator are polynomials. When solving equations involving rational expressions, it is important to consider restrictions on the variable that make the denominator zero, as these values are excluded from the solution set.

Solving Linear Equations

Solving linear equations involves isolating the variable on one side using inverse operations like addition, subtraction, multiplication, or division. After splitting the absolute value equation into two linear equations, each can be solved separately to find the values of the variable.

Solve each equation. ∣2x+33x−4∣=1\(\left\)| \(\frac{2x + 3}{3x - 4}\) \(\right\)| = 1 3x−42x+3=1

비슷한 문제에 대한 검증된 영상 답변:

주요 개념

Absolute Value Equations

Rational Expressions

Solving Linear Equations

Solve each equation. $\(\left\)| \(\frac{2x + 3}{3x - 4}\) \(\right\)| = 1$