x/50+5-1=x/40
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![x/50+5-1=x/40](/uploads/image/z/8623813-13-3.jpg?t=x%2F50%2B5-1%3Dx%2F40)
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x/50+5-1=x/40
x/50+5-1=x/40
x/50+5-1=x/40
x/50+4=x/40
x/40-x/50=4
x/200=4
x=800
x=800
x\50+5-1=x\40
x\50+4=x\40
4x\200+4=5x\200
4x\200-5x\200=-4
4x-5x\200=4
-x\200=4
-x=800
x=-800
x/50 + 4 = x/40
4x + 800 = 5x
5x - 4x = 800
x = 800