(3/6 * 14.4 +3/8* 16) -(2/4 *19.2 +1/5 1*2)
{a^2-(b-c)^2}/{(a+c)^2-b^2} + {b^2-(a-c)^ 2}/{(a+b)^2 -c^2}+ {c^2-(a-b)^2}/{(b+c)^2 -a^2}
Simplify the expression (lye) (1/2),
2a-b=18
4b-2a=12
a^2-(b-c)^ 2/(a+c) ^ 2 -b ^ 2 + b ^ 2 -(a-c)^ 2/(a+b)^ 2 -c ^ 2 + c ^ 2 - (a-b)^ 2/(b+c)^ 2 - a^ 2
(a+c)
2
−b
a
−(b−c)
+
(a+b)
−c
b
−(a−c)
(b+c)
−a
...
6 divided by 5/8
0.5X+2Y=27; X-(1/3)Y=10
3*39-15b/5+55b
669/(1784/2)*100
