(490 - х) - 250 = 70(1604 - х) - 108 = 800(456 + 112) - х = 400(х + 54) - 28 = 382 × (300 + х) = 600(х + 200) : 400 = 2

Question

(490 - х) - 250 = 70(1604 - х) - 108 = 800(456 + 112) - х = 400(х + 54) - 28 = 382 × (300 + х) = 600(х + 200) : 400 = 2

(490 - х) - 250 = 70 (1604 - х) - 108 = 800 (456 + 112) - х = 400 (х + 54) - 28 = 38 2 × (300 + х) = 600 (х + 200) : 400 = 2

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Ответ(ы) на вопрос:

Accepted Answer

(490-х)-250=70 490-х=320 -х=-170 х=170 (1604-х)-108=800 1604-х=908 -х=-696 х=696 (456+112)-х=400 568-х=400 -х=-168 х=168 (х+54)-28=38 х+54=66 х=12 2×(300+х)=600 300+х=300 х=0 (х+200):400=2 х+200=800 х=600