3. 5x – 3 = 2x + 7
7
3
Exercise 2.3
equations (Q1 to Q15)
Solve each of the following equations (Q1 to 210)
1. 0.7x + 0.3x = 0.5x + 6
2. 5x + 7 = 3x - 14
4. 5 + 2(x - 1) = x + 4(x - 3)
5. 3(x - 1) = 23 - 5(x + 2)
6. 15(x - 1) + 4(x + 3) = 2(7 + x)
8.+6 = -2
7. 2x - 7 = 2 + 1
9. 7 (x + 1) = 1 / (5 – 2x)
10. *27 = 3(x+1)+2
12. **5 (14-* _ 1) - 2x -7
14. 5x – 4 x _ 3 _ x + 6
12
13. 3/772)-(27--2)=x+11
15. 1/(2x + 1) - 1 / (x - 2) = 1 1 - 3) + 1 2
0
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Step-by-step explanation:
- 0.5x=6
x=12
2. 2x=-21
x=-21/2
3. 5+2x-2=x+4x-12
3x=15
x=5
4. 3x-3=23-5x-2
8x=24
x=3
5.15x-15+4x+12=14+x
18x=17
X=17/18
6. 6+2=8
7. 2x=3+7
x=5
8. 27=3x+2+3
27=3x+5
X=22/3
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