First, combine like terms on the left side of the equation:
#5m - 3m + 2 = 6m - 4#
#(5 - 3)m + 2 = 6m - 4#
#2m + 2 = 6m - 4#
Next, subtract #color(red)(2m)# and add #color(blue)(4)# to each side of the equation to isolate the #m# term while keeping the equation balanced:
#2m - color(red)(2m) + 2 + color(blue)(4) = 6m - color(red)(2m) - 4 + color(blue)(4)#
#0 + 6 = (6 - color(red)(2))m - 0#
#6 = 4m#
Now, divide each side of the equation by #color(red)(4)# to solve for #m# while keeping the equation balanced:
#6/color(red)(4) = (4m)/color(red)(4)#
#(2 xx 3)/color(red)(2 xx 2) = (color(red)(cancel(color(black)(4)))m)/cancel(color(red)(4))#
#(color(red)(cancel(color(black)(2))) xx 3)/color(red)(color(black)(cancel(color(red)(2))) xx 2) = m#
#3/2 = m#
#m = 3/2#