Question

what is the solution for x+3y=6 6x-9y=0

Answer 1

What are you solving for? X or y?

Answer 2

system of equations

Answer 3

You could solve it by graphing, substitution or solving by eliminating one variable.

Answer 4

what is the solution for the system of equations for x+3y=6 and 6x-9y=0

Answer 5

using substitution
first eqn x = 6-3y
use this expression for x in 2nd eqn
6(6-3y)-9y = 0
36-18y-9y = 0
36 = 27y
y =4/3
x = 6 - 3*4/3 =2
check values in eqn 2
6x -9y = 0
6*2 - 9 *4/3 = 0

Answer 6

using elimination
multiply the first eqn by 6
6x -18y =36
subtract the 2nd eqn
6x -6x + 18y -(-9y) =36 - 0
27y = 36
divide by 27
y = 4/3
from eqn 1 putting in your y value
x + 3 (4/3) = 6
x = 6 - 4 = 2