0.6(1.6b-5)-(2,9-8)-4(4-1,5b) b=9/13

Question

0.6(1.6b-5)-(2,9-8)-4(4-1,5b)
b=9/13

Answer 1

=0.96b-3-2,9+8-16+6b=6,96b-13,9= 174/26×9/13-139/10= 783/169-139/10~9,27