Question

find the value of the following aerobic expression . please do all (a) , (b) and (c)

Answer 1

a) 2(2) +(-1)- 5(3)
4-1-15
4-16==> -12

Answer 2

hello dear,
here is Ur answer .....
$a).2a + b - 5c \: \: if \: a = 2 \: \: . \: b = - \: \: .c = 3 \\ sol. 2a + b - 5c \\ = > 2(2) + ( - 1) - 5(3) \\ = > 4 - 1 - 15 \\ = > 3 - 15 \\ \: - 12 \: ans. \\ \\ \\ b). \: (10z - x - y) \: if \: x = \frac{1}{2} \: . \: y = \frac{1}{4} \: z = 5 \\ sol.(10 z - x - y) \\ = > 10(5) - \frac{1}{2} - \frac{1}{4} \\ = > \frac{50}{1} - \frac{1}{2} - \frac{1}{4} \\ \\ = > \frac{200 - 2 - 1}{4} = \frac{197}{4} \\ \frac{197}{4} \: ans. \\ \\ \\ c).6n + 8p - 7m \: if \: \: m = 6 \: \: . \: n = 4 \: \: . \: p = 2 \\ \\ sol. \: 6n + 8p - 7m \\ = > 6(4) + 8(2) - 7(6) \\ = > 24 + 16 - 42 \\ = > 40 - 42 = - 2 \\ so \: - 2 \: is \: ans.$
I hope it's helpful for you..THANK YOU ☺☺