2x-8=x-4y+7
x+3y=5y-2x+17
-(-24/-8)+4-3(-6)
3 4/7 * 2 1/2 / 6 1/4 - 1 1/4
3-4/7 * 2-1/2 / 6-1/4 -1-1/4
work out the circumfrace of 132cm into decimal point
1+2
Find square roots: a.625= b.256= c.81= d.121= e. 784=
3(5+y)
24:
∑
n
=
1
∞
10
4
∫
0
2
x
d
e
−
π
3
∊
ℝ
