Question

y=2x , 7x - 2y= 15 ,solv
e it by substitution method

Answer 1

Answer:

x=5

y=10

Step-by-step explanation:

we have,

y=2x-------------(1)

7x-2y=15-------------------(2)

now substitute the value of y from(1) in (2), we get

7x-2(2x)=15

7x-4x=15

3x=15

x=15/3

x=5

now substitute value of x in (1),we get

y=2x=2×5=10

y=10

we have,

x=5, y=10