Question

Which expressions are equivalent to the expression 4a – 6b + 3c?

a + 3(a − 2b + 3c)
4a + 3(2b + c)
2(2a − 3b + c) + c
2(2a − 3b) + 3c

more than one answer

Answer 1

1. a+3*a-3*2b+3*3c

a+3a+6b+9c

4a+6b+9

2. 4a+ 3*2b+3*c

4a+6b+3c

3. 2*2a-2*3b+2*c+c

4a-6b+2c+c

4a-6b+3c

4. 2*a-2*3b+3c

2a-6b+3c

Evaluation:

4a-6b+3c is just the same answer

Answer 2

2(2a-3c+c)+c

Explanation:

2×2a=4a 2×3b=6b 2×c+c= 3c