Given expression is

So we can write it in verbal expression as one eight of a number.
Answer: 3200
Step-by-step explanation:
Let's solve your equation step-by-step.
<span><span><span><span><span>3m</span>+<span>1m</span></span>−7</span>+<span>3m</span></span>=21
</span>Step 1: Simplify both sides of the equation.
<span><span><span><span><span>3m</span>+<span>1m</span></span>−7</span>+<span>3m</span></span>=21
</span><span>Simplify: (Show steps)
</span><span><span><span>7m</span>−7</span>=21
</span>Step 2: Add 7 to both sides.
<span><span><span><span>7m</span>−7</span>+7</span>=<span>21+7
</span></span><span><span>7m</span>=28
</span>Step 3: Divide both sides by 7.
<span><span><span>7m/</span>7</span>=<span>28/7
</span></span><span>m=4
</span>Answer:<span>m=<span>4</span></span>
The answer has to be 1 because anything times 1 in this case 6 has to be its own self.