Question

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

Answer 1

Step-by-step explanation:

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

86 - [- 27x + 63 - 20x + 20 - 30x]

86 - [ -77x + 83 ]

86 + 77x - 83

3 + 77x

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Answer 2

Answer:

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

=86-[15x-7(6x-9)-2{10x-10+15x}

=86-[15x-7(6x-9)-2(25x-10)

=86-[15x-7(6x-9)-50x+20]

=86-[15x-42x+63-50x+20]

=86-[-77x+83]

=86+77x-83

=3+77x