document.write( "Question 114720: Solve. 3(x + 6) + 6x = 7x + 2 \n" ); document.write( "
Algebra.Com's Answer #83593 by ankor@dixie-net.com(22740)\"\" \"About 
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Here it is step-by-step
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\n" ); document.write( " 3(x + 6) + 6x = 7x + 2
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\n" ); document.write( "Multiply what's inside the brackets:
\n" ); document.write( "3x + 18 + 6x = 7x + 2
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\n" ); document.write( "Add the x's on the left
\n" ); document.write( "9x + 18 = 7x + 2
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\n" ); document.write( "Subtract 18 from both sides
\n" ); document.write( "9x + 18 - 18 = 7x + 2 - 18
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\n" ); document.write( "9x = 7x - 16
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\n" ); document.write( "Subtract 7x from both sides:
\n" ); document.write( "9x - 7x = 7x - 7x - 16
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\n" ); document.write( "2x = -16
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\n" ); document.write( "1x = -16/2; divide both sides by 2
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\n" ); document.write( "x = -8
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\n" ); document.write( "Check our solution in the original equation substitute -8 for x:
\n" ); document.write( " 3(x + 6) + 6x = 7x + 2
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\n" ); document.write( " 3(-8 + 6) + 6(-8) = 7(-8) + 2
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\n" ); document.write( "3(-2) - 48 = -56 + 2
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\n" ); document.write( "-6 - 48 = -56 + 2
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\n" ); document.write( "-54 = -54, equality confirms our solution
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\n" ); document.write( "Can you do these kind of equations now? \n" ); document.write( "
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