Jawab:
Penjelasan dengan langkah-langkah:
1. 4a + 3a= (4+3)a= 7a2. 8a - 6a= (8-6)a= 2a3. -2x - 4x= (-2-4)x= -6x4. 9a-10a= (9-10)a= -1a5. -2x + 7x= (-2 + 7) x= 5x6. 4a+6+a+3= (4+1)a + (6+3)= 5a + 97. -5x + 10 + 3x - 9= (-5 +3) x + (10-9)= -2x + 18. 7-8a - a + 6 = (-8 - 1) a - (7+6)= -9a - 139. 2,7 x - 1,4 x= (2,7-1,4) x= 1,3x10. 2/3y + 5/6 y= (2/3+ 5/6) y= (4/6 + 5/6) y= 9/6 y= 3/2 ytips: 1. contoh soal7a+ 9a= (7+9)a atau = (7a - 9a)= -2a = -2a karena variabelnya sma2. 9a+8b= 9a + 8bgitu aja karena variabelnya beda3. andai9a + 8b - 7a+2b + 13-4maka= (9a - 7a) + ( 8b+2b) + (13-4)= 2a+10b+9 tnya aja ya klo ada yg kurang
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Jawab:
Penjelasan dengan langkah-langkah:
1. 4a + 3a
= (4+3)a
= 7a
2. 8a - 6a
= (8-6)a
= 2a
3. -2x - 4x
= (-2-4)x
= -6x
4. 9a-10a
= (9-10)a
= -1a
5. -2x + 7x
= (-2 + 7) x
= 5x
6. 4a+6+a+3
= (4+1)a + (6+3)
= 5a + 9
7. -5x + 10 + 3x - 9
= (-5 +3) x + (10-9)
= -2x + 1
8. 7-8a - a + 6
= (-8 - 1) a - (7+6)
= -9a - 13
9. 2,7 x - 1,4 x
= (2,7-1,4) x
= 1,3x
10. 2/3y + 5/6 y
= (2/3+ 5/6) y
= (4/6 + 5/6) y
= 9/6 y
= 3/2 y
tips:
1. contoh soal
7a+ 9a
= (7+9)a atau = (7a - 9a)
= -2a = -2a
karena variabelnya sma
2. 9a+8b
= 9a + 8b
gitu aja karena variabelnya beda
3. andai
9a + 8b - 7a+2b + 13-4
maka
= (9a - 7a) + ( 8b+2b) + (13-4)
= 2a+10b+9
tnya aja ya klo ada yg kurang