3x-2/3 = -5x-2/7 = 3-7x/2 Tham khảo câu trả lời từ Trợ lý ảo Lazi It looks like you have a set of equations that you're trying to express. Let's start by separating them out into parts for clarity. From your expression, we have: 1. \(\frac{3x - 2}{3} = -\frac{5x + 2}{7}\) 2. \(\frac{3 - 7x}{23} = -\frac{5x + 2}{7}\) 3. \(\frac{3 - 7x}{23} = \frac{-5x - 2}{7}\) (assuming this is similar to the previous one) Let's solve each of these equations one at a time. ### Equation 1 \[ \frac{3x - 2}{3} = -\frac{5x + 2}{7} \] Cross-multiply to eliminate the fractions: \[ 7(3x - 2) = -3(5x + 2) \] Expanding both sides gives: \[ 21x - 14 = -15x - 6 \] Now, rearranging the equation: \[ 21x + 15x = -6 + 14 \] \[ 36x = 8 \] Thus, \[ x = \frac{8}{36} = \frac{2}{9} \] ### Equation 2 \[ \frac{3 - 7x}{23} = -\frac{5x + 2}{7} \] Cross-multiply: \[ 7(3 - 7x) = -23(5x + 2) \] Expanding both sides gives: \[ 21 - 49x = -115x - 46 \] Rearranging yields: \[ 21 + 46 = -115x + 49x \] \[ 67 = -66x \] Thus, \[ x = -\frac{67}{66} \] ### Final Check The last equation you wrote: \[ \frac{3 - 7x}{23} = \frac{-5x - 2}{7} \] This equation is similar to the one we've solved, thus \(x = -\frac{67}{66}\) is consistent. ### Summary of Solutions 1. From the first equation, we found \(x = \frac{2}{9}\) 2. From the second and third equations, we found \(x = -\frac{67}{66}\) The problem presents conflicting results depending on the equations you are solving. Please clarify or provide additional context if these results don't align with your expectations!