ALJABAR KELAS 1 SMP ......
Jawab:
Penjelasan dengan langkah-langkah:
3. a. ( 6x - 8y +10 ) + ( 4x +y - 12 )
= 6x - 8y +10 + 4x +y - 12
= 10x - 7y -2
b. ( 7a - 7b +7c ) + ( a + b + c )
= 7a - 7b +7c + a + b + c
= 8a - 6b + 8c
4. a. ( 4j + 7k - 8m - 13 ) - ( 12j - 8k +m - 17 )
= 4j + 7k - 8m - 13 - 12j + 8k - m + 17
= - 8j + 15k - 9m +4
b. ( 18m + 7n - 19 ) - ( 14n + 5m - 19 )
= 18m + 7n - 19 - 14n - 5m + 19
= 13m - 7n
semoga membantu ^^
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