Question

QBS Ch 13
(7a+2b-6) + (6a+5b-1?

Note : Thank you
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Answer 1

Jawaban:( 7a + 2b - 6 ) + ( 6a + 5b - 1 )? = 7a + 6a + 2b + 5b + 6 + 1= 13a + 2b + 5b + 6 + 1= 13a + 7b + 6 + 1= 13a + 7b + 7