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Marat540 [252]
3 years ago
15

–3(5 – 15n) = 15(3n – 2)a. 30 b. –15 c. no solution d. all real numbers

Mathematics
1 answer:
Sunny_sXe [5.5K]3 years ago
6 0
-3(5-15n) = 15(3n-2)\\-3\cdot5-3\cdot(-15n)=15\cdot3n+15\cdot(-2)\\-15+45n=45n-30\ \ \ |subtract\ 45n\ from\ both\ sides\\\\-15=-30-FALSE\\\\Answer:\fbox{c.\ no\ solution}
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<img src="https://tex.z-dn.net/?f=%20-%20y%20%3D%20%5Cfrac%7B2%7D%7B5%7Dx%20-%203" id="TexFormula1" title=" - y = \frac{2}{5}x -
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The first step to solving this equation is to change the signs on both sides of the equation
y = -\frac{2}{5}x + 3
Since we don't know what x is but we do know why y is,, we will write our answer with the answer to y and x being left as undefined.
y = -\frac{2}{5}x + 3, x ∈ R
Let me know if you have any further questions
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