Question

86-[15x-7(6x-9)-2{10x-5(2-3x)}]​

Answer 1

Answer:

Step-by-step explanation:

86 - [15x - 7(6x-9) - 2{10x -5(2 - 3x)}]

=86 - [15x - (42x - 63) - 2[10x - (10 + 15x)]

= 86 - 15x -42x + 63 - 2(10x - 10 -15x)

= 86 -15x -42x +63 -20x + 20 + 30x

= (86 + 63 +20) -15x-45x-20x+30x

= 169 -50x

IQ VÔ CỰC :)))))

Answer 2

Answer:

86-[15x-7(6x-9)-2{10x-5(2-3x)}]

=86-[15x-42x+63-2{10x-10+15x}]

=86-[15x-42x+63-20x+20-30x}]

=86-15x+42x-63+20x-20+30x

=86-63-20+42x+30x+20x-15x

=86-83+92x-15x

=3+77x.

It may be your answer.....

Hope this helps.....

Thanks me.

Brainliest me.