Răspuns :
a-b=865
a=8*b+25.
8*b+25+b=865
8b+25+b=865
9b+25=865
9b=865-25
9b=840
b=840:9
b=93,(3)
a-93,(3)=865
a=865+93,(3)
a=958,3.
Sper sa fie bine.
a-b=865
a÷b=8 r 25⇒a=8b+25
8b+25-b=865
7b=865-25
b=840÷7⇒b=120
a=8b+25⇒a=8×120+25⇒a=960+25⇒a=985
a÷b=8 r 25⇒a=8b+25
8b+25-b=865
7b=865-25
b=840÷7⇒b=120
a=8b+25⇒a=8×120+25⇒a=960+25⇒a=985