Step-by-step explanation:
Bringing like terms on one side
2 + 7 - 5 = 2x - 4x
9 - 5 = - 2x
4 = - 2x
4/ - 2 = x
- 2 = x
Answer:
X = 3
3x = -3x + 15
3x +2x = 15
5x = 15
x = 3
7. 5
8. 33. 3333 or 100/ 3
9. 18/7
10. 30 /7
1-3c/4d+5
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