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

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Solution for (4x+5)+(x+7)=0 equation:


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

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

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

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

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

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

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

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

Solving
12 + 5x = 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 + 5x = 0 + -12

Combine like terms: 12 + -12 = 0
0 + 5x = 0 + -12
5x = 0 + -12

Combine like terms: 0 + -12 = -12
5x = -12

Divide each side by '5'.
x = -2.4

Simplifying
x = -2.4

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