6a+9b=126
2a+2b+18=54
2a+2b=54-18
2a+2b=36
6a+9b
2a+2b=36 |:2
a+b=18
a=18-b
6*(18-b)+9b=126
108-6b+9b=126
3b=126-108
3b=18 |:3
b=6
a=18-6
a=12
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
6a+9b=126
2a+2b+18=54
6a+9b=126
2a+2b=54-18
6a+9b=126
2a+2b=36
6a+9b
2a+2b=36 |:2
6a+9b=126
a+b=18
6a+9b=126
a=18-b
a=18-b
6*(18-b)+9b=126
a=18-b
108-6b+9b=126
a=18-b
3b=126-108
a=18-b
3b=18 |:3
a=18-b
b=6
a=18-6
b=6
a=12
b=6