Сколько будет (450:х+50):70=2

Question

Сколько будет (450:х+50):70=2

Answer 1

(450\x+50);70=2
(450\x+50)=140
x(450\x+50)=140x
450+50x=140x
90x=450
x=450\90
x=5

Answer 2

(450 :х+50):70=2

(450 :х+50)=2* 70

450 :х+50=140

450 :х = 140 - 50

450 :х = 90

х = 450 : 90

х = 5

Comments

(450\x+50);70=2
(450\x+50)=140
x(450\x+50)=140x
450+50x=140x
90x=450
x=450\90
x=5

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спасибо