The equations where x=3 is a solution are:
x-3=0
9-x=3
6=2x
The equation x-3=0 can be simplified to x=3, so it is true that x=3 is a solution to this equation.
Substituting x=3 into the equation 9-x=3 gives:
9-3=3
6=3
This is not a true statement, so x=3 is not a solution to this equation.
Substituting x=3 into the equation 6=2x gives:
6=2(3)
6=6
This is a true statement, so x=3 is a solution to this equation.
The equations 1+x=2 and 1/5x=3 can be simplified to x=1 and x=15, respectively. Therefore, x=3 is not a solution to these equations.
The equation x^2=9 can be simplified to x=±3. Therefore, x=3 is a solution to this equation, but it is not the only solution.
So, the equations where x=3 is a solution are:
x-3=0
6=2x
Therefore, the correct responses are:
x-3=0
6=2x