3. Find the sum of the following expression is. 3a + 4b - 15c, 6(a + b), 12b - 70 - 6a
Answers
Answered by
1
Answer:
3a+22b-15c-70
Step-by-step explanation:
3a+4b-15c+6(a+b)+12b-70-6a
3a+4b-15c+6a+6b+12b-70-6a
3a+22b-15c-70
The sum is 3a+22b-15c-70
Answered by
1
Answer:
3a+4b-15c
6a+6b
-6a+12b-7c
adding,
3a+22b-22c
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