Question

What is the solution of the following system?

{
3
x

+

3
y

=

10
−
9
x

−

9
y

=

−
30
3x + 3y = 10 -9x - 9y = -30

Answer 1

x=0 and y=10/3

ecplanation : I used elimination

3 (3x+3y=10)

9x-9y=-30thus 9x+9x=0, x=0 when x=0y is 10/3