Question

1 YOU BE THE TEACHER Your friend says “48x = 6*12." Is your friend right? Explain.

Answer 1

The claim proposed is an equation with a variable x which is hitherto unknown. When my friend says

$48x=6\cdot12$

he/she is right for as long as x turns out to be a real number.

Let us solve for x to find out whether my friend is right.

First, let us do the product 6* 12 on RHS (right- hand side) to get

$48x=72$

and finally, let us divide both sides by 48 to get

$\frac{48x}{48}=\frac{72}{48}$$\begin{gathered} x=\frac{3}{2} \\ \therefore x=1.5. \end{gathered}$

So the value of x is 1.5 and my friend is right.