Question

Simplify the following expression.
a + c − 4b − c + a − b

answer choices:
a − 6b

a − 5b

2a − 6b

2a − 5b

Answer 1

Group like terms

a + c − 4b − c + a − b
a + a+ c − c − 4b − b

Can you simplify it now?

Answer 2

a^2 + c^4 -8b...... @RyanL.
Not really

Answer 3

what's c-c?

Answer 4

- c^2? @RyanL.

Answer 5

Wait no.. wouldn't it just cancel out?

Answer 6

I wasn't thinking right lol

Answer 7

Yes same way 1-1 cancels out

Answer 8

a + a+ c − c − 4b − b

then turns into

a + a − 4b − b

Answer 9

What's a +a then?

Answer 10

a^2

Answer 11

@RyanL. or 2a?

Answer 12

Think of it this way

What's 1 + 1

it's 2

What's 1*1

it's\[1^2\]

Answer 13

So it should be the second one.

Answer 14

a + a − 4b − b

is then

2a − 4b − b

what's -4b-b?

Answer 15

Are we left with 2a − 5b ? @RyanL.

Answer 16

yes good job