By substituting into the equation, identify whether the following statements are true or false.
$x=6$x=6 is a solution for the equation $8x=51$8x=51.
True
False
$x=4$x=4 is a solution for the equation $2x=2\times4$2x=2×4.
True
False
$x=19$x=19 is a solution for the equation $\frac{x}{2}=8$x2=8.
True
False
$x=24$x=24 is a solution for the equation $\frac{x}{3}=8$x3=8.
True
False
Solve: $21=x+13$21=x+13
Solve: $5x=45$5x=45
Solve for $n$n.
$4\times n=20$4×n=20