answer: [tex]m = 1.2[/tex]
work:
[tex]17.70 = \frac{7}{2} m + 13.50[/tex] | subtract 13.50 and move it over
[tex]4.2 = \frac{7}{2}m[/tex] | divide by 7/2
[tex]1.2 = m[/tex] | final answer
