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Lady_Fox [76]
3 years ago
8

What is the value of x in the equation 3x-4y=65, when y=4?

Mathematics
2 answers:
yanalaym [24]3 years ago
6 0
Answer: x = 27

Explanation:

3x - 4y = 65
3x - 4(4) = 65
3x - 16 = 65
3x = 65 + 16
3x = 81
x = 81/3
x = 27
Goshia [24]3 years ago
3 0

Hello there! :)

Answer:

\huge\boxed{x = 27}

Given the equation:

3x - 4y = 65 where y = 4

Substitute in 4 for "y":

3x - 4(4) = 65

Simplify:

3x - 16 = 65

Add 16 to both sides:

3x - 16 + 16 = 65 + 16

3x = 81

Divide both sides by 3:

3x/3 = 81/3

x = 27.

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