(3400-600):х=400 780-у=1440:60

Question

(3400-600):х=400
780-у=1440:60

Answer 1

(3400-600)/х=400 
2800/x=400
x=2800/400
x=7

780-у=1440/60
780-у=19
y=780-19
y=761

Comments

спасибо !!!