Question

a =6 b=12 c=-4.
a) 3a+2b-3c.
b) a/b+5c.
c) 3a/b+5c.
d) 5b-4c.
e).10c+5b-4c.

me ajudem pfv é pra hj​

Answer 1

a =6 b=12 c=-4.

a)

$3.6+2.12-3.(-4)=18+24+12=54$

b)

$\frac{6}{12}+5.(-4)=\frac{1}{2}-20$

$\frac{1-40}{2}\\=-\frac{39}{2}$

c)$3.\frac{6}{12}+5.(-4) \\ \frac{3}{2}-20 \\ \frac{3-40}{2}=-\frac{37}{2}$

d)

$5.12-4.(-4)=60+16=76$

e)

$10c+5b-4c \\5b+6c\\ 5.12+6.(-4) \\60-24=36$