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Alecsey [184]
2 years ago
13

Help with #7 please :) i’ll mark you brainily

Mathematics
2 answers:
TEA [102]2 years ago
8 0

Answer:

x = 11

Step-by-step explanation:

The student didn't divide two on both sides in the step 1. This the mistake that the student made.

The correct solution

2√( 3x + 3 ) = 12

Divide 2 on both sides,

2√( 3x + 3 ) / 2 = 12 / 2

√( 3x + 3 ) = 6

Square on both sides,

[ √( 3x + 3 ) ]² = 6²

3x + 3 = 36

3x = 36 - 3

3x = 33

x = 33 / 3

x = 11

kiruha [24]2 years ago
3 0

Answer:

x=11

Step-by-step explanation:

✌️❤️✌️

............

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alina1380 [7]

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22 marbles are red

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Sara made an error in solve the one-step equation below.5x + 9 = 29-9 -9- 4x = 29/4. /4x = -7.25What is the error that Sara made
MAXImum [283]
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To solve this one-step equation you:

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