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iren2701 [21]
2 years ago
14

Show that 7x + 1 is equivalence to 2(2x - 1) + 3(x + 1)​

Mathematics
2 answers:
marissa [1.9K]2 years ago
4 0
7x + 1 = 2(2x - 1) + 3(x + 1)

7x + 1 = 4x - 2 + 3x + 3

7x + 1 = 7x + 1

Please mark brainliest if right!
ryzh [129]2 years ago
3 0

Answer with Step-by-step explanation:

2 ( 2x -1 ) + 3 ( x + 1 )

First, let us <u>find the value of the above expression.</u>

2 ( 2x -1 ) + 3 ( x + 1 )

4x - 2 + 3x + 3

<em>Combine like terms</em>

4x + 3x - 2 + 3

<u>7x + 1</u>

Therefore, it is clear that the given expression is equal to 7x + 1.

∴ 7x + 1 = 2 ( 2x -1 ) + 3 ( x + 1 )

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What is Normal Distribution?

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How to use z-table?

Step 1:

In the z-table, find the probability value of 0.90 and note down the value of the that row which is 1.2

Step 2:

Then look up at the top of z-table and note down the value of the that column which is 0.08

Step 3:

Finally, note down the intersection of step 1 and step 2 which is 1.28

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