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alexgriva [62]
3 years ago
14

(3x+11) + (10x-12)/2 = 45

Mathematics
2 answers:
babunello [35]3 years ago
6 0

3x+11=10x-12

We move all terms to the left:

3x+11-(10x-12)=0

We get rid of parentheses

3x-10x+12+11=0

We add all the numbers together, and all the variables

-7x+23=0

We move all terms containing x to the left, all other terms to the right

-7x=-23

x=-23/-7

x=3+2/7

Sonja [21]3 years ago
3 0

Answer:

x=5

Step-by-step explanation:

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Answer:

149

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There is a common difference between consecutive terms in the sequence.

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This indicates the sequence is arithmetic with n th term

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