2x+3y=-1,x-y=2
2x+3y=1
7x+2y=-22
α
120
=
93
𝛼
1
2
0
9
3
$\frac{710+705+715+700+695+705+700+710}{8}$
(0.39 x 520) / (300 x 0.16) =
0.39 x 520 / 300 x 0.16 =
how to get 8 by using 3, 4, 5, 8
525×100÷35
(2x+3)(2-X)(2+X)
15h/3h=
