solve 13 (x + y - 5) = y - z = 2x - 11 = 9 - (x+2z)
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Step-by-step explanation:
13(x+y-5)=y-z=2x-11=9-(x+2z)
13x+13y-65=y-z=2x-11=9-x-2z
13x+13y-y+z-2x+x=65-11+9
12x+12y+z=63
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