InvictusPain4777
InvictusPain4777 InvictusPain4777
  • 14-09-2018
  • Mathematics
contestada

Solve for x.

−1/2(x+2) + 1 1/2x = 3

A. x=1 ​
B. ​x=2 ​
C. ​x=4 ​
D. x=5

Respuesta :

gmany
gmany gmany
  • 15-09-2018

[tex]-\dfrac{1}{2}(x+2)+1\dfrac{1}{2}x=3\ \ \ \ |\cdot2\\\\-(x+2)+3x=6\\\\-x-2+3x=6\\\\2x-2=6\ \ \ \ |+2\\\\2x=8\ \ \ \ |:2\\\\\boxed{x=4}\\\\Answer:\ C.\ x=4[/tex]

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