dana2002
dana2002
10-01-2015
Mathematics
contestada
combine like terms 4x-5+(-7x)+9=
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apologiabiology
apologiabiology
10-01-2015
just combine the x terms and the number terms exg
3x+4x=x(3+4)=7x
so 4x-5+(-7x)+9=
4x-5-7x+9
(4x-7x)+(-5+9)=
x(4-7)+(4)=
-3x+4
or 4-3x
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