document.write( "Question 127958: Would you be able to help me with this question please? I have to produce and solve a linear equation for the following:\r
\n" ); document.write( "\n" ); document.write( "A householder can choose to pay for his electricity by one of the following methods:
\n" ); document.write( "i) a basic charge of £6.50 plus a charge of £0.50 per unit
\n" ); document.write( "ii) a basic charge of £8.50 plus a charge of £0.48 per unit
\n" ); document.write( "Find the number of units for which the bills will be the same.\r
\n" ); document.write( "\n" ); document.write( "Thank you. \n" ); document.write( "
Algebra.Com's Answer #93706 by oscargut(2103)\"\" \"About 
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A householder can choose to pay for his electricity by one of the following methods:
\n" ); document.write( "i) a basic charge of £6.50 plus a charge of £0.50 per unit
\n" ); document.write( "ii) a basic charge of £8.50 plus a charge of £0.48 per unit
\n" ); document.write( "Find the number of units for which the bills will be the same.\r
\n" ); document.write( "\n" ); document.write( "taking y=total charge and x number of units
\n" ); document.write( "i) y=6.5+0.5x
\n" ); document.write( "ii)y=8.5+0.48x\r
\n" ); document.write( "\n" ); document.write( "so 6.5+0.5x=8.5+0.48x
\n" ); document.write( "then -2+0.02x=0
\n" ); document.write( "then 0.02x=2
\n" ); document.write( "then x=2/0.02=100\r
\n" ); document.write( "\n" ); document.write( "R: 100 units
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