Answer:
x=17
Explanation:
Given that G(x)=5/2x-7/2
Given that G(x)=39
Which is 39=5/2x-7/2
Multiply through by 2
39×2=(5/2x)2 - (7/2)2
78=5x -7
5x=78+7=85.
x=85/5
x=17.
If G(x) = 39, then
5/2x - 7/2 = 39
Multiplying both sides by 2, we get
5x - 7 = 78
5x = 78 + 7
5x = 85
x = 17
I hope this answer helps!
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