Answer:
no solution
Explanation:
You want the solution to the absolute value equation |6y -7| = -1.
Analysis
The expression on the left side of the equal sign is the output of the absolute value function. That output can never be negative: all negative input values are transformed to positive output values by the absolute value function.
The expression on the right side is negative. There is no value of the variable that will make the absolute value function give a negative output. There can be no solution.