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Ipatiy [6.2K]
4 years ago
10

Help fast ok thx!!!!

Mathematics
2 answers:
serg [7]4 years ago
4 0

Answer:

C

Step-by-step explanation:

Given

\sqrt{3x+8} = \sqrt{4x+1}

[ note that (\sqrt{x})² = x ]

Square both sides

3x + 8 = 4x + 1 ( subtract 4x from both sides )

- x + 8 = 1 ( subtract 8 from both sides )

- x = - 7 ( multiply both sides by - 1 )

x = 7 → C

Ostrovityanka [42]4 years ago
4 0

Answer:

x = 7.

Step-by-step explanation:

Squaring both sides:

3x + 8 = 4x + 1

3x - 4x = 1 - 8

-x = -7

7 = x.

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