Question

If y = x / 2, and 3x + 4y = 20, then x = -files.

Answer 1

Answer:

we know y = x/2

x = 2y

on placing values in above equation u will get

6y + 4y = 20

10 y = 20

y = 2

so x = 4

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

3x+4x/2=20

3x+2x=20

5x=20

x=20/5

x=4