(3x+5)+(x+4)=

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Solution for (3x+5)+(x+4)= equation:


Simplifying
(3x + 5) + (x + 4) = 0

Reorder the terms:
(5 + 3x) + (x + 4) = 0

Remove parenthesis around (5 + 3x)
5 + 3x + (x + 4) = 0

Reorder the terms:
5 + 3x + (4 + x) = 0

Remove parenthesis around (4 + x)
5 + 3x + 4 + x = 0

Reorder the terms:
5 + 4 + 3x + x = 0

Combine like terms: 5 + 4 = 9
9 + 3x + x = 0

Combine like terms: 3x + x = 4x
9 + 4x = 0

Solving
9 + 4x = 0

Solving for variable 'x'.

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

Add '-9' to each side of the equation.
9 + -9 + 4x = 0 + -9

Combine like terms: 9 + -9 = 0
0 + 4x = 0 + -9
4x = 0 + -9

Combine like terms: 0 + -9 = -9
4x = -9

Divide each side by '4'.
x = -2.25

Simplifying
x = -2.25

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