Question

tell 3(5a+7b+3c)+2(4a-6b-7c)​

Answer 1

Answer:

23a + 9c - 5c

Step-by-step explanation:

3(5a+7b+3c) + 2(4a-6b-7c)

=15a+21b+9c + 8a-12b-14c

=15a+8a +21b-12b +9c-14c

=23a + 9b - 5c

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Answer 2

Step-by-step explanation:

23a+9b-5c

3×5a=10a

3×7b=21b

3×3c=9c

2×4a=8a

2×6b=12b

2×7c=14c

10a+8a

21b-12b

9c-14c

23a+9b-5c

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