Question

Solve each of the following equations and verify the answer in each case:
EXERCISE 9B
1. X +5 = 12
2. x+3 = -2
3. X - 7 = 6
4. x - 2 = -5
3x
8.
15
5. 3x - 5 = 13
6. 4x + 7 = 15
= 12
5
11. 3(x + 6) = 24
1
12. 6x +5 = 2x +17
9. 5x - 3= * +17
10. 2.x
2
X
X
8=1
13.
14.
15. 3(x + 2) - 2(x - 1) = 7
4
2 3
16. 5(x - 1] + 2(x + 3) + 6 = 0
18. 1613x - 5) - 1014x - 8) = 40
17. 6(1 - 4x) + 712 + 5x) = 53
19. 3(x + 6) + 2(x + 3) = 64
2x
3
20. 312 - 5x) - 201 - 6x) = 1
1
21. 5 = +
22
4
6 2
X-3
5
-
11
2 2
2m
2x
+ 8 = -1 23.
3
2
5
3
(x - 1) = x - 3
25.
26.
10​

Answer 1

Answer:

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Answer 2

$\huge\pink{\underline{\color{blue}{answer:}}}$

$\purple{\bf{Question 1 -}}$

• $x + 5 = 12$

‏‏‎

Solution ↓

$\begin{gathered} x + 5 = 12 \\ \Longrightarrow x + 5 - 5 = 12 - 5 \\ \Longrightarrow x = 7 \end{gathered}$

CHECK :

Substituting x = 7 in the given equation, we get

• LHS => 7 + 5 = 12
• RHS => 12

$\pink \therefore$ when x = 7, we have: LHS = RHS.

$\bold{\color{green}{Hence, verified!}}$