Question

Pick out the solution from the values given in the bracket next to each equation. show that the other values do not satisfy the equation.

$7p-4=10(1,3,2)$

Answer 1

$p$	$LHS$	$RHS$
$1$	$7p-4=(7\times 1)-4=3$	$10$	$LHS\ne RHS$
$3$	$7p-4=(7\times 3)-4=17$	$10$	$LHS\ne RHS$
$2$	$7p-4=(7\times 2)-4=10$	$10$	$LHS=RHS$