1)46+а+24+а = 70+2а
2)25*9*b*4 = 900b
3)57+b+43+b = 100+2b
4) 96*7+4*7 = 7*(96+4) = 700
5)89*6-9*6 = 6*(89-9) = 480
6)72*5+28*5 = 5*(72+28) = 500
1)45x+26x+17x-78x = 10x = 160 (при x=16)
2) 118x-56x+35x+27x = 124x = 372 (при x=3)
3)83y-35y+16y+36y = 100y = 200 (при y=2)
4)16*5y+14*2y-100y = 80y+28y-100y = 8y = 48 (при y=6)