0.6m-1.4=(3.5m+1.7)-(2.7m-3.4)
0.6m-1.4=(3.5m+1.7)-(2.7m-3.4)0.6m-1.4=3.5m+1.7-2.7m+3.4 0.6m-3.5m+2.7m=+1.7+3.4+1.4 -0.2m=6.5 m=-32.5