Question

solve the system of equations algebraically 1/3x+1/3y=1 and 2x+2y=9

Answer 1

is the 1st equation
\[ \frac{1}{3}x + \frac{1}{3}y = 1 \text{ ?} \]

Answer 2

yes

Answer 3

if so, multiply each term by 3 (multiply both sides of the equation by 3) to get
x +y =3
now you have
x+y=3
2x+2y=9

or
x+y=3
x+y = 9/2 (divided both sides by 2)

What 2 numbers, when added together equal 3 and at the same time equal 9/2 ? None.

There is no solution for this pair of equations