Solve the following over the real numbers

• Mar 14th 2013, 02:44 PM
Solve the following over the real numbers
Solve the following over the real numbers.
a) -2 = (-5x/12) + 3
b) 3x + 5 ≥ 6x – 7
c) 3x + √6 = 2x - 3√6
• Mar 14th 2013, 03:00 PM
HallsofIvy
Re: Solve the following over the real numbers
Quote:

Solve the following over the real numbers.
a) -2 = (-5x/12) + 3

Subtract -3 from both sides, then divide both sides by -5/12

Quote:

b) 3x + 5 ≥ 6x – 7
Subtract 3x from both sides, then add 7 to both sides, then divide both sides by 3

Quote:

c) 3x + √6 = 2x - 3√6
Subtract 2x from both sides, then subtract $\sqrt{6}$ from both sides
• Mar 14th 2013, 03:04 PM
Re: Solve the following over the real numbers
thanks so much, what are the final answers so I can check mine
• Mar 14th 2013, 03:09 PM
Plato
Re: Solve the following over the real numbers
Quote:

thanks so much, what are the final answers so I can check mine

You post them. That way you prove that you are working.
• Mar 14th 2013, 03:13 PM
Re: Solve the following over the real numbers
A) x=12
B) ?
c) -5.715...
• Mar 14th 2013, 03:28 PM
Plato
Re: Solve the following over the real numbers
Quote:

b) solve $12\ge 3x$
c) leave as $-4\sqrt{6}$