What value divided by 7 equals 21?

To find the answer, just multiply the divisor with the quotient: 7 × 21 = 147

To prove this, let's compute 147 divided by 7: $\frac{147}{7} = 21$

How does it work?

Asking which value divided by 7 gives a result of 21 is equivalent to solving the following equation:

$\frac{x}{7} = 21$

We need to isolate x, so multiply both sides by 7: $\frac{7 x}{7} = 7 \times 21$
$\frac{7 x}{7}$ is equivalent to $\frac{7}{7} x$ , which simplifies to $1 x$ (or just $x$ ).
Thus: $x = 7 \times 21 = 147$

So, if the divisor is 7 and the quotient is 21, the dividend is 147.