Math, asked by akhilaramjee, 11 months ago

a+9d=52
a+17d=20+a13

Answers

Answered by kuldeepmaurya70

2

Step-by-step explanation:

$12a - 17b = - 20 \\ a + 9b = 52 \\ - 125b = - 644 \\ b = - 644\div 125 \\ | 125a = 704 \\ a = 704 \div 125$

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