hasil penjumlahan 7a+2b-6 dan -6a+5b-1

7a+2b -6 + (-6a)+ 5b-1
7a -6a + 2b + 5b -6 -1=
-a + 7b -7
Semoga membantu

( 7a + 2b - 6 ) + ( - 6a + 5b - 1 ) = 7a + 2b - 6 - 6a + 5b - 1
=7a - 6a + 2b + 5b - 6 - 1
=a + 7b - ( - 5)
=a + 7b + 5
semoga membantu