Question 731910
Solution ::

note :: the symbol * means multiplication and the symbol / means division

-3(6r+5)/8 = 6r-1

-3*(6r+5) = 8*(6r-1) [8 is transposed from the left side of the equal sign to its right side]

-3*6r - 3*5 = 8*6r - 8 [we now open the brackets]

-18r - 15 = 48r - 8

we now collect the like terms to the left side and right sides respectively

=> 48r+18r = -15+8

=> 66r = -7

=> r = -7/66