Question

if y = X upon 2 and 3x + 4y = 20 then x​

Answer 1

Answer:

x=4

y=2

Step-by-step explanation:

Y=x/2 implies 2y=x

substitute it in the other equation;

3(2y) +4y= 20

6y + 4y = 20

10y = 20

y = 2

if y=2, x= 2y, so x= 2×2 =4

Answer 2

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Answer =2

Solution -Refer to attachment