8-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-(90x)=9

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Solution for 8-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-(90x)=9 equation: 


Simplifying
8 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -1(90x) = 9

Remove parenthesis around (90x)
8 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -1 * 90x = 9

Multiply -1 * 90
8 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -90x = 9

Combine like terms: 8 + -7 = 1
1 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -90x = 9

Combine like terms: 1 + -7 = -6
-6 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -90x = 9

Combine like terms: -6 + -7 = -13
-13 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -90x = 9

Combine like terms: -13 + -7 = -20
-20 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -90x = 9

Combine like terms: -20 + -7 = -27
-27 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -90x = 9

Combine like terms: -27 + -7 = -34
-34 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -90x = 9

Combine like terms: -34 + -7 = -41
-41 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -90x = 9

Combine like terms: -41 + -7 = -48
-48 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -90x = 9

Combine like terms: -48 + -7 = -55
-55 + -7 + -7 + -7 + -7 + -7 + -7 + -7 + -90x = 9

Combine like terms: -55 + -7 = -62
-62 + -7 + -7 + -7 + -7 + -7 + -7 + -90x = 9

Combine like terms: -62 + -7 = -69
-69 + -7 + -7 + -7 + -7 + -7 + -90x = 9

Combine like terms: -69 + -7 = -76
-76 + -7 + -7 + -7 + -7 + -90x = 9

Combine like terms: -76 + -7 = -83
-83 + -7 + -7 + -7 + -90x = 9

Combine like terms: -83 + -7 = -90
-90 + -7 + -7 + -90x = 9

Combine like terms: -90 + -7 = -97
-97 + -7 + -90x = 9

Combine like terms: -97 + -7 = -104
-104 + -90x = 9

Solving
-104 + -90x = 9

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '104' to each side of the equation.
-104 + 104 + -90x = 9 + 104

Combine like terms: -104 + 104 = 0
0 + -90x = 9 + 104
-90x = 9 + 104

Combine like terms: 9 + 104 = 113
-90x = 113

Divide each side by '-90'.
x = -1.255555556

Simplifying
x = -1.255555556

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