how can i do these problems 8x+6-9x=2-x-15 ,AND 3m-10=2(4M-5),AND 5-(n-4)=3(n+2),and 8(x+1)=4x-8
1
Expert's answer
2012-08-21T07:28:06-0400
Let's consider the first one (all the rest of your tasks are solved similarly): 8x+6-9x=2-x-15 Let's gather terms with x in the left part and the rest in the right 8x+6-9x & =& 2-x-15 & -6 & +x +x -6 hence we obtain: 8x-9x+x=2-15-6 0=-19 The equality we've obtained is false so this problem has no solution.
Another one 3m-10=2(4M-5) 3m-10=8m-10 5m=0 whence m=0
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