Question

please let me tell answer fast who give answer I mark as brainliest rate as teacher also class 6th algebra chapter 12.6
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Answer 1

Answer:

$(2) = > \\ x \times 4 = 9 \times 4 \\ = > x = 9 \times 4 \div 4 \\ = > x = 9 \\ (3) = > \\ 3x - 5 = 7 \\ = > 3x = 7 + 5 \\ = > 3x = 12 \\ = > x = 12 \div 3 \\ = > x = 4 \\ (4) = > \\ 5x + 12 = 27 \\ = > 5x = 27 - 12 \\ = > 5x = 15 \\ = > x = \frac{15}{5} \\ = > x = 3$