memelord666 memelord666

13-09-2016
Mathematics

contestada

Solve:negative 1 over 2x + 2 = −x + 7
a. 10
b. 5 over 2
c. 2 over 5
d. 20

Respuesta :

dalendrk dalendrk

13-09-2016

[tex]-\dfrac{1}{2}x+2=-x+7\ \ \ \ |subtract\ 2\ from\ both\ sides\\\\-\dfrac{1}{2}x=-x+5\ \ \ \ |add\ x\ to\ both\ sides\\\\\dfrac{1}{2}x=5\ \ \ \ |multiply\ both\ sides\ by\ 2\\\\\boxed{x=10\to\fbox{a.}}[/tex]

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