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adoni [48]
3 years ago
14

0.5(7d+4)=7−1.5d solve for d

Mathematics
2 answers:
MissTica3 years ago
4 0
3.5d+2=7-1.5d

Subtract 2 from both sides

3.5d=5-1.5d

Add 1.5d to the other side

5d=1.5d

d=3.33
Oduvanchick [21]3 years ago
3 0
I can help!
Let's solve your equation step-by-step.<span><span>0.5<span>(<span><span>7d</span>+4</span>)</span></span>=<span>7−<span>1.5d</span></span></span>Step 1: Simplify both sides of the equation.<span><span>0.5<span>(<span><span>7d</span>+4</span>)</span></span>=<span>7−<span>1.5d</span></span></span><span><span><span><span>(0.5)</span><span>(<span>7d</span>)</span></span>+<span><span>(0.5)</span><span>(4)</span></span></span>=<span><span>7+</span>−<span>1.5d</span></span></span>(Distribute)<span><span><span>3.5d</span>+2</span>=<span><span>7+</span>−<span>1.5d</span></span></span><span><span><span>3.5d</span>+2</span>=<span><span>−<span>1.5d</span></span>+7</span></span>Step 2: Add 1.5d to both sides.<span><span><span><span>3.5d</span>+2</span>+<span>1.5d</span></span>=<span><span><span>−<span>1.5d</span></span>+7</span>+<span>1.5d</span></span></span><span><span><span>5d</span>+2</span>=7</span>Step 3: Subtract 2 from both sides.<span><span><span><span>5d</span>+2</span>−2</span>=<span>7−2</span></span><span><span>5d</span>=5</span>Step 4: Divide both sides by 5.<span><span><span>5d</span>5</span>=<span>55</span></span><span>d=1</span>Answer:<span>d=<span>1</span></span>
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