Expand out terms of the left hand side: 4 m + 8 = sqrt(2)/4
Subtract 8 from both sides: 4 m + (8 - 8) = (sqrt(2))/4 - 8
8 - 8 = 0: 4 m = (sqrt(2))/4 - 8 Put each term in (sqrt(2))/4 - 8 over the common denominator 4: (sqrt(2))/4 - 8 = (sqrt(2))/4 - 32/4: 4 m = (sqrt(2))/4 - 32/4