Question

problema 4 va roggggg!

Answer 1

2(5a+3b)=3a+2b

10a+6b=3a+2b

7a=-4b

a=-4/7b

(a+b)/(a-b)= (-4/7b+b)/(-4/7b-b)

=(-4/7b+7/7b)/(-4/7b-7/7b)

=3/7b / (-11/7b)

=3b/7 × 7/-11b

=3/-11