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Solving Linear Equations 3x-(x-5)=-2x
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open braket which change sign and trasfer x one side and number other side
Any ideas?
i dont understand i thought i multiply the outside of the side to the inside of the ( )
3x-x+5=-2x
– ( x – 5 ) = (-1) • ( x – 5 )
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ok i got it but can you answer how to i know when to open the brackets because sometimes it have to be muti from the outside to the inside of the ( )
-x + 5
If there is a minus sign outside of the brackets you have to convert it into a -1 and use the distributive property :-)
First step is to open the brackets 3x-x+5=-2x now collect the like terms one side 2x+2x =-5 4x=-5
-5/4
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a(b+c) = ab + ac
yes x=-5/4.
Now substitute -5/4 back into the original equation to check if you got it right :-)
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