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vova2212 [387]
2 years ago
14

Pls help! Error Analysis problem

Mathematics
2 answers:
Gennadij [26K]2 years ago
7 0

Answer:

Ana made a mistake from line 2 to 3

Step-by-step explanation:

charle [14.2K]2 years ago
6 0

Answer:

Ana made a mistake from line 2 to 3

Step-by-step explanation:

From line 2 to 3, on the left side, ana <u>added</u> 2 and 3 but completely ignored the - in front of the 3. the correct answer would have been<u> -x - 21 = 3x + 19</u>

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