Question

Реши уравнения пожжжжжжжжжжжж

Answer 1

у-150=700-450
у-150=250
у=250+150
у=400

х+200=13+400
х+200=413
х=413-200
х=213

х*80=720
х=720:80
х=9

60*у=420
у=420:60
у=7

Answer 2

y-150=700-450
y-150=250
y=250+150
y=400

x+200=13+400
x+200=413
x=413-200
x=187

x×80=720
x=720:80
x=9

60×y=420
y=420:60
y=7