26:4=6 (ост. 2)
66:8=8 (ост. 2)
43:7=6 (ост. 1)
52/15+7/5=52/15+21/15=73/15=4 13/15.
1)8217+2138*(6906-6841):5-7064=
1.8217+2138×65÷5-7064
2.8217+27794-7064
3.28947
2)76000-62:(28000:56+609)
76000-62:(500+609)
76000-62:1109
76000-62/1109
84283938/1109
<span>(-3m^5n)^2(-2n^4m)^3*(-m^6)^5*(-n^4)^3=6m^43n^26</span>
76-x
76-12-100%
75*100=(76-12)*x
7500=64x
-64x=-7500:(-64)
x~117-100=17%