Question

Determine by substitution if -3 is the root of x+12=9

Answer 1

Answer:

Step-by-step explanation:

$\Large{\mathsf{\green{x+12\Rightarrow9 }}}$

$\large{\underline{\mathsf{\purple{Put\:the\: value\:of\:x:- }}}}$

$\Large{\mathsf{(-3)+12 \Rightarrow 9}}$

$\Large{\mathsf{12-3 \Rightarrow 9}}$

$\Large{\mathsf{9 \Rightarrow 9}}$

$\Large{\boxed{\mathsf{\red{\underline{LHS} = \underline{RHS}}}}}$