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r-ruslan [8.4K]
3 years ago
9

What number makes this statement true 7x-7=2x+8

Mathematics
2 answers:
Nostrana [21]3 years ago
8 0
7x - 2x = 8+7
5x = 15
x = 3
erica [24]3 years ago
5 0

Answer:

Step-by-step explanation:

X=5/3

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N76 [4]

The simplification of the polynomial expression will give 3x² - 20x + 8.

<h3>How to illustrate the polynomial?</h3>

The polynomial expression is given as:

(5x² + 13x4) (17x² + 7x - 19) + (5x-7)(3x + 1)

= 5x² + 13x - 4 - 17x² - 7x + 19 + 15x² + 5x - 21x - 7

Then collect like terms

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= 3x² - 20x + 8.

Learn more about polynomial on:

brainly.com/question/2833285

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