Chapter 2 एक चर वाले रैखिक समीकरण Ex 2.1

प्रश्न 1.
निम्न समीकरणों को हल कीजिए –
1. x – 2 = 7
2. y + 3 = 0
3. 6 = z + 2
4. 1 + x = 17
5. 6x = 12
6. = 10
7. = 18
8. 1.6 = y1.5
9. 7x – 9 = 16
10. 14y – 8 = 13
11. 17 + 6p = 9
12. +1 = 1
हल:
1. x – 2 = 7
दोनों पक्षों में 2 जोड़ने पर हम प्राप्त करते हैं,
x – 2 + 2 = 7 + 2
या x = 9
∴ समीकरण का अभीष्ट हल: x = 9 होगा

2. y + 3 = 10
दोनों पक्षों में से 3 घटाने पर,
y + 3 – 3 = 10 – 3
या y = 7
∴ समीकरण का अभीष्ट हल: y=7

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