1) 45 + x =97 2) 500=200+ x 3) a+37=400 4) x + 37 = 390

Question

1) 45 + x =97 2) 500=200+ x 3) a+37=400 4) x + 37 = 390

Answer 1

1)х=97-45,х=52
2)х=500-200,х=300
3)а=400-37,=363
4)х=390-37,х=353