rozwiąż równanie
x-45+36=1,5(135-x+45-36)
x-9=1,5(-x+144)
x-9= -1,5x+216
2,5x=225
x=90
SPRAWDZENIE:
x-45+36=1,5(135-x+45-36=
90-9= -1,5*90+216
81= -135+216
81=81
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x-45+36=1,5(135-x+45-36)
x-9=1,5(-x+144)
x-9= -1,5x+216
2,5x=225
x=90
SPRAWDZENIE:
x-45+36=1,5(135-x+45-36=
x-9=1,5(-x+144)
x-9= -1,5x+216
90-9= -1,5*90+216
81= -135+216
81=81