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Simplify the rational expression. If the rational expression cannot be simplified, so state.
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Plato
An ancient Greek philosopher who laid the foundational elements of Western philosophy and science.
Intelligence
Represents the capacity for learning, reasoning, understanding, and similar forms of mental activity; aptitude in grasping truths, relationships, facts, meanings, etc.
Culture
The collective beliefs, customs, arts, and technologies of a social group or society that are transmitted across generations.
Customs
Traditional practices or behaviors shared by a particular social, ethnic, or age group, often passed down from generation to generation.
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Q75: <span class="ql-formula" data-value="y=-3 x-3"><span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mi>y</mi><mo>=</mo><mo>−</mo><mn>3</mn><mi>x</mi><mo>−</mo><mn>3</mn></mrow><annotation
Q117: <span class="ql-formula" data-value="\left\{\begin{array}{l}y=x+3 \\y=3 x+7\end{array}\right."><span class="katex"><span class="katex-mathml"><math