Using substituting, the value of 2g + 3h is 30.
What is substituting?
The substituting is "the process of plugging a value for one of the variables".
According to the question,
The value of 2g +3h where g = 9 and h = 4 substituting this value in the given equation we get the value:
2g +3h = 2 (9) + 3 (4)
= 18 + 12
= 30
Hence, using substituting the value of 2g + 3h is 30.
Learn more about substituting here
https://brainly.com/question/24341944
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