(3x+7)+(4x+5)=

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Solution for (3x+7)+(4x+5)= equation:


Simplifying
(3x + 7) + (4x + 5) = 0

Reorder the terms:
(7 + 3x) + (4x + 5) = 0

Remove parenthesis around (7 + 3x)
7 + 3x + (4x + 5) = 0

Reorder the terms:
7 + 3x + (5 + 4x) = 0

Remove parenthesis around (5 + 4x)
7 + 3x + 5 + 4x = 0

Reorder the terms:
7 + 5 + 3x + 4x = 0

Combine like terms: 7 + 5 = 12
12 + 3x + 4x = 0

Combine like terms: 3x + 4x = 7x
12 + 7x = 0

Solving
12 + 7x = 0

Solving for variable 'x'.

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

Add '-12' to each side of the equation.
12 + -12 + 7x = 0 + -12

Combine like terms: 12 + -12 = 0
0 + 7x = 0 + -12
7x = 0 + -12

Combine like terms: 0 + -12 = -12
7x = -12

Divide each side by '7'.
x = -1.714285714

Simplifying
x = -1.714285714

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