Question 1132593


{{{(5/2)((7/2)-2) +2x = -5/2(2-(7/2)) +3x + 4 }}}

{{{(5/2)(7/2-4/2) +2x = -(5/2)(4/2-7/2) +3x + 4 }}}

{{{(5/2)(3/2) +2x = -(5/2)(-3/2) +3x + 4 }}}

{{{(5/2)(3/2) + (5/2)(-3/2) -4=3x- 2x  }}}

{{{15/2 - 15/2 -4=x  }}}

{{{cross(15/2) - cross(15/2) -4=x  }}}

{{{x=-4}}}