Question

Solve the system by the addition method
3x + y = 4
9x + 3y =6

Answer 1

Answer:

THE ANSWER ARE X→ -1

Y→ 5

Answer 2

Answer:

3x-y----(1)

9x-y=9-----(2)

x=3+y/3

9(3+y/3=9

27+9y=9*3

9y=27-27

9y=0

y=0/9

y=0

( put value of y in 1st equation )

3x-y=3

3x-0=3

3x=3

x=3/3

x=1

(1,0)

therefore, the value of x and y by substitution method is 1and 0