document.write( "Question 632927: Can you help me please? How can you determine if 8x=6y+7 as a linear equation with two variables? Is the equation a linear equation in two variables? \n" ); document.write( "
Algebra.Com's Answer #398590 by Theo(13342)![]() ![]() You can put this solution on YOUR website! 8x = 6y + 7 is a linear equation in 2 variables. \n" ); document.write( "you have 2 variables, x and y. \n" ); document.write( "the highest exponent for any variable in the equation is 1. \n" ); document.write( "note that x is equivalent to x^1 and y is equivalent to y^1. \n" ); document.write( "to convert this equation to standard form of a linear equation, subtract 6y from both sides of the equation to get: \n" ); document.write( "8x - 6y = 7 \n" ); document.write( "to convert this equation to slope intercept form of a linear equation, subtract 8x from both sides of the equation to get: \n" ); document.write( "-6y = -8x + 7 \n" ); document.write( "multiply both sides of this equation by -1 to get: \n" ); document.write( "6y = 8x - 7 \n" ); document.write( "divide both sides of this equation by 6 to get: \n" ); document.write( "y = (8x-7)/6 which is then simplified to: \n" ); document.write( "y = (8/6)x - (7/6) which is then further simplified to: \n" ); document.write( "y = (4/3)x - (7/6) \n" ); document.write( "an equation is linear if the highest exponent of any term in the equation is equal to 1. \n" ); document.write( "note that we are talking about a polynomial equation which requires that all exponents not be negative and be integers. \n" ); document.write( "under these rules, x^0 is the lowest exponent that can be used. \n" ); document.write( "note that x^0 = 1 \n" ); document.write( "some linear equations under these rules are: \n" ); document.write( "y = 5 (exponent of y is 1 and 5 is a constant) \n" ); document.write( "x = 5 (exponent of x is 1 and 5 is a constant) \n" ); document.write( "y = 5x (exponent of x is 1 and exponent of y is 1) \n" ); document.write( "y = 5x - 13 (exponent of x is 1 and exponent of y is 1 and -13 is a constant)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "note that y = 5x could also be written as -5x + y = 0 and could also be written as 5x = y \n" ); document.write( "note that y = 5x - 13 could also be written as -5x + y = -13 and could also be written as -5x = -y - 13\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |