3| 42 , 63 , 84
7| 14 , 21 , 28
1| 2 , 3 , 4
2 × 3 × 4 × 7 × 3 = 504
Answer:
x=19
Step-by-step explanation:
x = 7
4 + 5(x + 2) = 7x
4 + 5x + 10 = 7x
5x - 7x = - 4 - 10
- 2x = - 14
- x = - 14/2
- x = - 7
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