Penjelasan dengan langkah-langkah:
semoga bener.........
Jawaban:
2.a. ( -3m + 4n - 6 ) + ( 7n - 8m + 10 ) = -11 m + 11n + 4
b. ( 15a + 7b - 5c ) + ( - 11a - 12b + 13d ) = 4a - 5b - 5c + 13d
3. a. ( -3m + 4n - 6 ) + ( 7n - 8m + 10 ) = -3m + 8m + 4n - 7n -
6 - 10
5m - 3n -16
b. ( 15a + 7b - 5c ) - (-11a - 12b + 13d ) = 15a + 11a + 7b +
12b - 5c - 13d
= 26a + 19b - 5c - 13d
4. 5x - 6y + 8z + ( 7x - 9z ) - ( 2y + 9z -10)
= 5x + 7x - 6y - 2y + 8z - 9z - 9z + 10
= 12x - 8y - 10z + 10
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Penjelasan dengan langkah-langkah:
semoga bener.........
Jawaban:
2.a. ( -3m + 4n - 6 ) + ( 7n - 8m + 10 ) = -11 m + 11n + 4
b. ( 15a + 7b - 5c ) + ( - 11a - 12b + 13d ) = 4a - 5b - 5c + 13d
3. a. ( -3m + 4n - 6 ) + ( 7n - 8m + 10 ) = -3m + 8m + 4n - 7n -
6 - 10
5m - 3n -16
b. ( 15a + 7b - 5c ) - (-11a - 12b + 13d ) = 15a + 11a + 7b +
12b - 5c - 13d
= 26a + 19b - 5c - 13d
4. 5x - 6y + 8z + ( 7x - 9z ) - ( 2y + 9z -10)
= 5x + 7x - 6y - 2y + 8z - 9z - 9z + 10
= 12x - 8y - 10z + 10