зведiть подiбнi доланки:
1) -6x + 9y - x - 8y =
2) 0,47m - 0,49m - 0,54m =
3) 19,2p + 9,2x - 8,7p=
6) a + b + а - b =
1) -6x + 9y - x - 8y =
2) 0,47m - 0,49m - 0,54m =
3) 19,2p + 9,2x - 8,7p=
6) a + b + а - b =
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Ответ:
-6x+9y-x-8y=-6x-x+9y-8y=5x+y
0,47m-0,49m-0,54m=0,56m
19,2p+9,2x-8,7p=19,2p-8,7p+9,2x=10,5p+9,2x
a+b+a-b=a+a+b-b=2a