document.write( "Question 77: I am in year 7 and I have a question. Could you please explain the term Linear Equation. I have looked on the internet, but the explanations are too complicated, could you please explain it to me so it can make more sense. Thank You, Ryan aged 12 \n" ); document.write( "
Algebra.Com's Answer #33 by AnlytcPhil(1807)\"\" \"About 
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I am in year 7 and I have a question. Could you please explain the term
\n" ); document.write( "Linear Equation. I have looked on the internet, but the explanations are
\n" ); document.write( "too complicated, could you please explain it to me so it can make more
\n" ); document.write( "sense. Thank You, Ryan aged 12
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\n" ); document.write( "The first 4 letters of the word \"LINEar\" spell \"LINE\". So an equation in
\n" ); document.write( "y and x which has a graph which is a straight line, and not a curve, is
\n" ); document.write( "called a \"linear equation\". It turns out that a linear equation is one
\n" ); document.write( "that when it is simplified, has no x² or x³ or higher powers of x than
\n" ); document.write( "the first power, no denominators containing x, no square roots containing
\n" ); document.write( "x, no cube roots containing x, etc. Here are some examples of linear
\n" ); document.write( "equations:
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\n" ); document.write( "5x - 4y = 9
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\n" ); document.write( "3y = 4x + 2
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\n" ); document.write( "y = -7x - 2
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\n" ); document.write( "(3/4)x + (1/3)y = 1/2
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\n" ); document.write( "Any equation that can be put in the form
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\n" ); document.write( "Ax + By = C
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\n" ); document.write( "where A, B and C are numbers is a linear equation, i.e., its graph is
\n" ); document.write( "a straight line.
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\n" ); document.write( "Edwin J
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