(3x+10)+(9x+11)=

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Solution for (3x+10)+(9x+11)= equation:


Simplifying
(3x + 10) + (9x + 11) = 0

Reorder the terms:
(10 + 3x) + (9x + 11) = 0

Remove parenthesis around (10 + 3x)
10 + 3x + (9x + 11) = 0

Reorder the terms:
10 + 3x + (11 + 9x) = 0

Remove parenthesis around (11 + 9x)
10 + 3x + 11 + 9x = 0

Reorder the terms:
10 + 11 + 3x + 9x = 0

Combine like terms: 10 + 11 = 21
21 + 3x + 9x = 0

Combine like terms: 3x + 9x = 12x
21 + 12x = 0

Solving
21 + 12x = 0

Solving for variable 'x'.

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

Add '-21' to each side of the equation.
21 + -21 + 12x = 0 + -21

Combine like terms: 21 + -21 = 0
0 + 12x = 0 + -21
12x = 0 + -21

Combine like terms: 0 + -21 = -21
12x = -21

Divide each side by '12'.
x = -1.75

Simplifying
x = -1.75

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