solve each inequality

label Algebra
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-2x=7 is less than or equal to 37

May 21st, 2015

-2x-7=<37

-2x=37+7

-2x=44

x= -21

 -2x-7= >37
-2x=44
- x=21

May 22nd, 2015

sorry, this is the answer;

Look at -2%2Ax-7=highlight_red%28+37+%29.
Moved these terms to the left highlight_green%28+-37+%29
It becomes -2%2Ax-7-highlight_green%28+37+%29=0.


Look at -2%2Ax-highlight_red%28+7+%29-highlight_red%28+37+%29=0.
Added fractions or integers together
It becomes -2%2Ax%2Bhighlight_green%28+-44+%29=0.

Look at -2%2Ax%2Bhighlight_red%28+-44+%29=0.
Removed extra sign in front of -44
It becomes -2%2Ax-highlight_green%28+44+%29=0.

Look at highlight_red%28+-2%2Ax-44+%29=0.
Solved linear equation highlight_red%28+-2%2Ax-44=0+%29 equivalent to -2*x-44 =0
It becomes highlight_green%28+0+%29=0.
Result: 0=0
This is an equation! Solutions: x=-22.

May 22nd, 2015

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