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Natasha2012 [34]
3 years ago
8

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

Mathematics
2 answers:
Elenna [48]3 years ago
5 0

Answer:

3x-4y=65

3x=65+4y

x=(65+4y)/3, when y=4

x=(65+4*4)/3

x=(65+16)/3

x=81/3

x=27

Ad libitum [116K]3 years ago
5 0

Answer:

x = 27

Step-by-step explanation:

3x - 4y = 65

Let y= 4

3x - 4(4) = 65

3x -16 = 65

Add 16 to each side

3x-16+16 = 65+16

3x = 81

Divide by 3

3x/3 =81/3

x=27

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You're using inverse operation to solve this equation. Now you just have to think about it. What number plus 20 would equal the same number squared? The answer would be 5, since
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