Question

(u: 4 - 35)*120 = 3 000
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Answer 1

30х-4200=3000

30х=7200

х=240

Answer 2

(u : 4 - 35)*120 = 3 000

(1/4u-35) *120=3000

30*u-4200=3000

30*u=4200+3000

30*u=7200

u=7200:30

u=240

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