Question

Simplify the following expression.
a + 5c − b − c + a − b

2a – 2b + 4c
a – b + 4c
2a – b + 4c
2a – b + 6c

Answer 1

\[a + 5c - b - c + a - b\\ \implies a + a -b-b+5c-c \]

Answer 2

That makes\[\color{blue}{a + a} \color{red}{-b-b}\color{green}{+5c-c} \]

Answer 3

Combine the blues, reds, greens.

Answer 4

I am lost / :

Answer 5

Simplify the following expression.
2x − 2y − 5z + 2x + 2y + 3z

A) 4x – 4y − 2z
B) 4x – 4y − 8z
C) 4x – 4y + 8z
D) 4x – 2z

Answer 6

4x-2z

Answer 7

do you guys have any idea on the last question?

Answer 8

yea its the first option

Answer 9

Which of the following expressions could be simplified further?

A) 2x + 3m + 7n + 4z – 5p
B) 6x – 7m + 9x
C) 4x + 3m – 5z + 8a
D) 2x + 3m – 5y + 4z