shelby29 shelby29
  • 18-09-2014
  • Mathematics
Answered

Solve each equation.
1. 9/2x+18+3x=11/2
2. (x+6)-(2x=7)-3x=-9



Answer :

luana
luana luana
  • 18-09-2014
[tex]1.\\\frac{9}{2}x+18+3x=\frac{11}{2}\ \ \ \ \ |Multiply\ by\ 2\\\\ 9x+36+6x=11\\\\ 15x+36=11\ \ \ |Subtract\ 36\\\\ 15x=-25\ \ \ |Divide\ by\ 15\\\\ x=-1\frac{2}{5}\\\\ 2.\\ (x+6)-(2x-7)-3x=-9\\\\ x+6-2x+7-3x=-9\\\\ -4x+13=-9\ \ \ |Subtract\ 13\\\\ -4x=-22\ \ \ |Divide\ by\ -4\\\\ x=5,5[/tex]
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