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Llana [10]
4 years ago
6

Solve for n: d=3m+7n

Mathematics
1 answer:
viva [34]4 years ago
6 0
Let's solve for n.<span>d=<span><span>3m</span>+<span>7n</span></span></span>
Step 1: Flip the equation.<span><span><span>
3m</span>+<span>7n</span></span>=d</span>
Step 2: Add -3m to both sides.<span><span><span><span>
3m</span>+<span>7n</span></span>+<span>−<span>3m</span></span></span>=<span>d+<span>−<span>3m</span></span></span></span><span><span>
7n</span>=<span>d−<span>3m</span></span></span>
Step 3: Divide both sides by 7.

<span><span><span>7n/</span>7</span>=<span><span>d−<span>3m/</span></span>7

</span></span><span>n=<span><span><span>1/7 </span>d</span>+ <span><span><span>−3/</span>7</span><span>m</span></span></span></span>
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