LindaLine
LindaLine
23-10-2016
Mathematics
contestada
0.3(r+2)=-0.1(-2r-4)
Respuesta :
seizetheday
seizetheday
23-10-2016
I would first multiply both sides by 10 to get rid of the decimals:
3(r+2) = -(-2r-4)
We can then expand the brackets:
3r+6 = 2r+4
And simplify:
r+6 = 4
r = -2
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