168-x-47
-x=47-168
-x=-121
x=121
удачи
1) 18т 5ц + 3т 6ц = 1850ц + 360ц = 2210ц = <span>22т 10ц
</span>2) <span>7м2 35дм2 + 330дм2 = 7м2 365дм2
3) </span><span>8м3 - 2м3 24дм3 = 6м3 976дм3</span>
3.2х+4.4=-14.8
3.2x=14.8-4.4
3.2x=10.4
x= 10.4:3.2
x=3.25