5+45+20+38+x+(12-x)+(9-x)=140

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Solution for 5+45+20+38+x+(12-x)+(9-x)=140 equation:


Simplifying
5 + 45 + 20 + 38 + x + (12 + -1x) + (9 + -1x) = 140

Remove parenthesis around (12 + -1x)
5 + 45 + 20 + 38 + x + 12 + -1x + (9 + -1x) = 140

Remove parenthesis around (9 + -1x)
5 + 45 + 20 + 38 + x + 12 + -1x + 9 + -1x = 140

Reorder the terms:
5 + 45 + 20 + 38 + 12 + 9 + x + -1x + -1x = 140

Combine like terms: 5 + 45 = 50
50 + 20 + 38 + 12 + 9 + x + -1x + -1x = 140

Combine like terms: 50 + 20 = 70
70 + 38 + 12 + 9 + x + -1x + -1x = 140

Combine like terms: 70 + 38 = 108
108 + 12 + 9 + x + -1x + -1x = 140

Combine like terms: 108 + 12 = 120
120 + 9 + x + -1x + -1x = 140

Combine like terms: 120 + 9 = 129
129 + x + -1x + -1x = 140

Combine like terms: x + -1x = 0
129 + 0 + -1x = 140
129 + -1x = 140

Solving
129 + -1x = 140

Solving for variable 'x'.

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

Add '-129' to each side of the equation.
129 + -129 + -1x = 140 + -129

Combine like terms: 129 + -129 = 0
0 + -1x = 140 + -129
-1x = 140 + -129

Combine like terms: 140 + -129 = 11
-1x = 11

Divide each side by '-1'.
x = -11

Simplifying
x = -11

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