Andre is solving the inequality 14x+3≤8x+3. He first solves a related equation. 14x+3=8x+3 14x=8x 8=14 This seems strange to Andre. He thinks he probably made a mistake. What was his mistake? Responses Andre made a mistake when he erased the 3 on both sides of the equation. Andre made a mistake when he erased the 3 on both sides of the equation. Andre made a mistake by changing the less than symbol to an equal sign. Andre made a mistake by changing the less than symbol to an equal sign. Andre made a mistake after getting 14x=8x. He divided each side by x, but this is not valid since x may be 0 and dividing by 0 gives an undefined result.