Question

If 3x-4y=5 is is a linear equation such that x=7, then find the value of y?​

Answer 1

Answer:

3x - 4y = 5

Putting value of x=7

3×7 - 4y = 5

21 - 4y = 5

-4y = 5 - 21

- 4y = -16

$y = \frac{ - 16}{ - 4}$

(minus will cut off)

So answer is y = 4

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Answer 2

Answer:

4

Step-by-step explanation:

GIVEN THAT,

X=7

THEN YOU HAVE TO SUBSTITUTE TO THIS EQUATION

3x-4y=5

here, x=7

3(7)-4(y)=5

21-4y=5

then, 4y=5-21

4y=-16

y=-16/-4

y=4

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