Question

Simplify the following expression:

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

2a - 6b + 2c

2a - 6b + c

a - 6b + c

a - 5b + 2c

Answer 1

Any ideas?

Answer 2

a + 2c - 5b - c + a - b
= a + a - 5b - b + 2c - c
= 2a - 6b + c

Answer 3

do you understand?

Answer 4

@ryanvarghese12790 could please provide more explanation?

Answer 5

so answer is 2a-6b+c

Answer 6

do you follow me?

Answer 7

skullpatrol?

Answer 8

How did you make subtraction commutative?

Answer 9

It is easy to understand You put all the terms together and simply work out:
(1)a+(1)a =2a
then, -5b--(1)b = 6b
then, 2c-(1)c = (1)c

Answer 10

do you get it skullpatrol

Answer 11

How did you make subtraction commutative?

Answer 12

\[a -b \neq b -a\]

Answer 13

the answer would be 2a+c−6b

Answer 14

yes