rachel104
rachel104
16-11-2017
Mathematics
contestada
Please help me I have to finish this quickly!!
Respuesta :
Vythyl
Vythyl
16-11-2017
Okay!
16) 3n-5=-8(6+5n)
3n-5=-48-40n
43n=-43
n=-1
18) -3(4x+3)+4(6x+1)=43
-12x-9+24x+4=43
12x-5=43
12x=48
x=4
20) -5(1-5x)+5(-8x-2)=-4x-8x
-5+25x-40x-10=-4x-8x
-15-15x=-12x
-15=3x
x=5
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