Question

(77-9×4-s)-5×5+10÷2=5×2-0:4×7
Dau coroană!​

Answer 1

( 77-9×4-s)-5×5+10:2=5×2-0:4×7

(77-36-s)-25+5=10-0×7

( 41-s )-25+5=10-0

(41-s)-25+5=10

41-s-25=10-5

41-s-25=5

41-s=5+25

41-s=30

s=41-30

s=10