Question

Find the value of 2a+5b-3c if a=3,b=2,c=-4​

Answer 1

Answer:

==2a + 5b-3c-a-3b+2c

2a-a+ 5b-3b-3c+2c

=(2-1)a+(5-3)b+{(-3)+2}

=a+2b-c​

Step-by-step explanation:

Answer 2

Answer:

$2a + 5b - 3c \\ ifa = 3 \\ b = 2 \\ c = - 4 \\ su bstite \: abovein \: equation \: \\ 2 \times 3 + 5 \times 2 - 3 \times ( - 4) \\ = 6 + 10 + 12 \\ \\ = 28$

28 is our answer