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Natalka [10]
3 years ago
5

Simplify the expression completely. 7b+3(4b−2)+6÷3

Mathematics
2 answers:
alisha [4.7K]3 years ago
8 0

Answer:

19b - 4

Step-by-step explanation:

<u>Distribute the 3 to (4b - 2), like so:</u>

3(4b - 2)

12b - 6

→ 7b + 12b - 6 +6 ÷ 3

<u>Add like terms:</u>

→19b - 6 + 6 ÷ 3

<u>Following PEMDAS, you divide 6 by 3 first:</u>

→19b - 6 + 2

<u>Add like terms:</u>

→19b - 4

Karo-lina-s [1.5K]3 years ago
4 0

Answer:

19b-4

Step-by-step explanation:

7b+3(4b-2)+6÷3

Bracket comes first so we distribute 3 over the terms in the bracket

= 7b + 12b -6 +6 ÷ 3

First we solve division

= 7b + 12b -6 +6 ÷ 3

= 7b + 12b -6 +2

= (7b+12b)+(-6+2)

= 19b -4

This can't be simplified further as it can't be solved anymore

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2 years ago
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Factorize the following expression ab-a-b+1
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Group 'em together

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5 0
3 years ago
Which pair of numbers is relatively prime
mote1985 [20]

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2 years ago
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The least common denominator of 1/3, 5/8, and 1/2 is:
andrey2020 [161]

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8 0
2 years ago
Simply please “picture”
oksian1 [2.3K]
<h3>Answer: (-infinity, 7]</h3>

=====================================

Explanation:

The first interval (-infinity, 3) describes any number less than 3, so we can write x < 3 in short hand (where x is the unknown number).

The second interval (-1, 7] means we start at -1 and stop at 7. We do not include -1 but include 7. So we say that -1 < x \le 7 (ie x is between -1 and 7; exclude -1, include 7)

If you were to graph each ona number line, you would see that the too intervals have overlapping parts. The right most edge extends out as far as x = 7. There is no left most edge as it goes onforever that direction.

Therefore, the to intervals combine to get x \le 7 which turns into the interval notation answer of (-infinity, 7]

-----------

It might help to think of it like this: x < 3 and -1 < x \le 7 say "x is some number that is less than 3, or it is between -1 and 7". So x could be anything less than 7, including 7 itself.

4 0
3 years ago
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