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

answer choices:
a − 6b

a − 5b

2a − 6b

2a − 5b

Question

Simplify the following expression.
a + c − 4b − c + a − b

answer choices:
a − 6b

a − 5b

2a − 6b

2a − 5b

anonymous · Answer

Group like terms

a + c − 4b − c + a − b
a + a+ c − c − 4b  − b

Can you simplify it now?

anonymous · Answer

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

anonymous · Answer

what's c-c?

anonymous · Answer

- c^2? @RyanL.

anonymous · Answer

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

anonymous · Answer

I wasn't thinking right lol

anonymous · Answer

Yes same way 1-1 cancels out

anonymous · Answer

a + a+ c − c − 4b  − b

then turns into

a + a − 4b  − b

anonymous · Answer

What's a +a then?

anonymous · Answer

a^2

anonymous · Answer

@RyanL.  or 2a?

anonymous · Answer

Think of it this way

What's 1 + 1

it's 2

What's 1*1

it's$$1^2$$

anonymous · Answer

So it should be the second one.

anonymous · Answer

a + a − 4b  − b

is then

2a − 4b  − b

what's -4b-b?

anonymous · Answer

Are we left with 2a − 5b ? @RyanL.

anonymous · Answer

yes good job