125 * 328 * 8 = (125 * 8) * 328 = 1 000 * 328 = 328 000
1) 125 * 8 = 1 000
2) 1 000 * 328 = 328 000
1) 40+2x=3x-15
2x-3x=-40-15
-x=-55
x=55
2) 1<span>6x-33=1+13x
16x-13x=1+33
3x=34
x=34/3
3)</span><span>23,8y-80-24,3y=2
</span>23,8y-24,3y=2+80
-0,5y=82
y=-164
4)<span>95у-4,9=98у-1
95y-98y=-1+4,9
-3y=3,9
y=-1,3</span>