różnica liczb x i y wynosi 3, a ich suma równa jest 15. Wyznacz te liczby.
x-y=3
x+y=15/-y
x=15-y
15-y-y=3
15-2y=3/-15
-2y=-12/:(-2)
y= 6
x-6=3/+6 y=6
x=9 x=9
x - y = 3
x + y = 15
--------------
2x = 18
x = 9
9 - y = 3
-y = 3 - 9
-y = -6
y = 6
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
x-y=3
x+y=15/-y
x-y=3
x=15-y
15-y-y=3
15-2y=3/-15
-2y=-12/:(-2)
y= 6
x-y=3
x-6=3/+6 y=6
x=9 x=9
x - y = 3
x + y = 15
--------------
2x = 18
x = 9
9 - y = 3
-y = 3 - 9
-y = -6
y = 6
x = 9
y = 6