86-[15x-7(6x-9)-2{10x-5(2-3x)}]
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Answer:
The answer is -
Step-by-step explanation:
Solve step by step by opening the brackets
= 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{10x + 15x - 10}]
= 86 - [15x - 7(6x - 9) - 2{25x -10}]
= 86 - [15x - 7(6x - 9) - 50x + 20]
= 86 - [15x - 42x + 63 - 50x + 20]
= 86 - [15x - 50x - 42x + 63 + 20]
= 86 - [15x - 92x + 83]
= 86 - 77x + 83
= 86 + 83 - 77x
= 169 - 77x[Answer of the question]
EXTRA
Value of x
= 169 - 77x
-77x = -169
x = -169/-77
= 169/77
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