Check whether the value of x=4 satisfies the equation 12x=2 or not.
For checking whether its a solution or not for 12x=2
Put x=4
LHS=12x=124=3
While RHS=2
As, RHS is not equal LHS.
Therefore, x=4 does not satisfy equation 12x=2.
Check whether the value of x=20 is satisfied for the equationx4=6 or not.
Check whether the value of x=3 satisfies the equation 6+2x=12 or not.
Check whether the value of y=3 satisfies the equation 3y+4=13 or not.
Check whether the value of x=4 satisfied for the equation 20-x=16