3-2x+x+4-2x-5=3x-4-5x-7
3-x-1-2x=-2x-11
2-3x=-2x-11 /+11
13-3x=-2x /+2x
13-x=0 /-13
-x=-13 /*(-1)
x=13
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3-2x+x+4-2x-5=3x-4-5x-7
3-x-1-2x=-2x-11
2-3x=-2x-11 /+11
13-3x=-2x /+2x
13-x=0 /-13
-x=-13 /*(-1)
x=13