9m-8=6m+7 56-9n=-5n 15-8x=2-9x -6m+32=2m 10z+7=9x+5
1) 9m-8=6m+7 9m-6m=7+8 3m=15 m=15:3 m=5 2) 56-9n=-5n -9n+5n=-56 -4n=-56 n=-56:(-4) n=14 3) 15-8х=2-9х -8х+9х=2-15 х=-13 4) -6m+32=2m -6m-2m=-32 -8m=-32 m=-32:(-8m) m=4 5) 10х+7=9х+5 10х-9х=5-7 х=-2