Реши уравнения х-9=4 , у+7=15, 35-х=30

Question

Реши уравнения х-9=4 , у+7=15, 35-х=30

Comments

х-9=4 Х=4+9 х=13

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x-9=4x=4+9x=13y+7=15y=15-7y=835-x=30-x=30-35-x=-5x=5

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у=15-7 у=8

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35-х=30 х=35-30 х=5

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у=15+7=22

Answer 1

1)х=4+9=13
2)у=7+15=22
3)х=35-30=5