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Jobisdone [24]
3 years ago
5

How do I solve the problem 7(p + 3q) Please show how you go the answer.

Mathematics
2 answers:
lions [1.4K]3 years ago
7 0
<span>I hope this helps you

7<span>(<span>p+<span>3q</span></span>)</span></span><span>=<span><span>(7)</span><span>(<span>p+<span>3q</span></span>)</span></span></span><span>=<span><span><span>(7)</span><span>(p)</span></span>+<span><span>(7)</span><span>(<span>3q</span>)</span></span></span></span><span>=<span><span>7p</span>+<span>21q</span></span></span>
MA_775_DIABLO [31]3 years ago
3 0
7(p+3q) cross multiply out, so now you have 7p+21q. This is the same thing as 7p+21q=0
Subtract 21q from both sides of the equation
7p=-21q
Divide by 7...
p=-3q
This is simplified as you can get it. 
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Hello :
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by identite :  a²-b² =(a-b)(a+b)
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