Question

1. n+40=1/3×360
2. 250-(1/2×150)=350:n
3. (1/4×n):50=120:24
4. n+(1/2×250)-60=70×2

Answer 1

1)n+40=120⇔n=80
2)250-75=350/n
  175=350/n⇔n=2
3)n/200=5⇔n=1000
4)n + 125-60=140
  n=75

Answer 2

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