find b
((ab)/c)/d = e
6 / 2 (2 + 1)
-9/8 times -4/5
2+2*2/2-2
7+5
4x + 2y = -12
4x + 8y = -24
5รท100
(4 1/3 / 11/5 ) * 55/78
$\sqrt{\Box}$ 90*10^-9
guve the answer of this with solution 19+(-12)
