Х+8=18 х-3=7 47-х=40 50-х=40 х-8=2 х+3=13
1) x=18-8 2)x=7+3 3)x=47-40 4)x=50-40 5)x=8+2 6)x=13-3 x=10 x=10 x=7 x=10 x=10 x=10