Question 732017
<a href='http://www.mathway.com/answer.aspx?p=calg?p=x-6ySMB01SMB15-51,SMB153x-7ySMB01SMB15-54?p=167?p=?p=?p=?p=?p=0?p=?p=0?p=?p=?p=SolveSMB15bySMB15SubstitutionSMB15Method' target='_blank'><img src='http://www.mathway.com/math_image.aspx?p=x-6ySMB01-51,3x-7ySMB01-54?p=180?p=22' border='0' style='vertical-align:middle' alt='Click Here to Solve by Substitution Method' /></a>