What is 10^3-6+2[9x-10-(3-x)]-9^2 ?

The solution to 10^3-6+2[9x-10-(3-x)]-9^2 is 20x+887

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simplify 10^3-6+2[9x-10-(3-x)]-9^2

simplify

1 0^{3} - 6 + 2 [9 x - 10 - (3 - x)] - 9^{2}

20 x + 887

Solution steps

1 0^{3} - 6 + 2 (9 x - 10 - (3 - x)) - 9^{2}

1 0^{3} = 1000

9 x - 10 - (3 - x) = 10 x - 13

9^{2} = 81

= 1000 - 6 + 2 (10 x - 13) - 81

Expand

2 (10 x - 13) : 20 x - 26

= 1000 - 6 + 20 x - 26 - 81

Group like terms

= 20 x + 1000 - 6 - 26 - 81

Subtract the numbers:

1000 - 6 - 26 - 81 = 887

= 20 x + 887

\frac{x ^{2} - 1}{x ^{3} - x ^{2}}

\frac{( a ^{2} + 3 a + 2 )}{( a + 1 )}

\frac{1}{x ^{2}} + \frac{1}{x}

\frac{x}{x ^{2} + 3 x + 2} + \frac{3}{x + 1}

\frac{5}{7 - 2}

What is 10^3-6+2[9x-10-(3-x)]-9^2 ?
The solution to 10^3-6+2[9x-10-(3-x)]-9^2 is 20x+887