Question

What is the solution to the system of equations below? x + 3 y = 15 and 4 x + 2 y = 30 (4, 10) (3, 6) (6, 3) (10, 4)

Answer 1

(6,3)

Explanation:

Answer 2

• x=15-3y

in second equation,

4x+2y=30

2(2x+y)=30

2x+y=15

Now,putting the value of x from above

2×(15-3y)+y=15

30-6y+y=15

30-15=5y

y=3

Then,

x=15-3×3

x=6

#(6,3) is ans