Question

Soal Ada Di Gambar !!!
Tolong Ya Kakak-Kakak Jawab dengan benar dan lengkap!!!

Answer 1

soal nomer 1
(13a-8b) + ( 12a+9b)
= 13a -8b +12a +9b
= 25a +b

soal nomer 2
(15i+14b+13k) + ( -30i-45j+51k)
= 15i+14b+13k  -30i-45j+51k
= -15i + 14b -45j + 64k

soal nomer 3
(3-17x +35z) + (4x+23y-9)
= 3-17x +35z + 4x+23y-9
= -13x 23y + 35z - 6

soal nomer 4
(42n+35m+7)-(50m-20n+9)
= 42n +35m +7- 50m + 20n - 9
= 62n - 15m -2

soal nomer 5 (oleh)
(5x+3)-(x-1)
= 5x +3 -x+1
= 4x +4

soal nomer 6 (dari)
(2y+15z)-(4y-8)
= 2y + 15z -4y +8
= -2y +15z +8

soal nomer 7(oleh)
5x + 3 -(2z+7)
= 5x +3 -2z -7
= 5x -2z -4

soal nomer 8 (dari)
x-y -(6x+4)
= x-y -6x -4
= -5x -y -4