50*x=500-150 помогите пжл

Question

50*x=500-150 помогите пжл

Answer 1

50*x=350
x=350:50
x=7
50*7=500-150

Answer 2

50x = 500 - 150
50x = 350
x = 350 : 5
x = 7

Comments

у:90=36÷12 поможете

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y:90 = 3

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y = 3*90

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y = 270

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спасибо большое