(x+7)+(3x+8)=

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Solution for (x+7)+(3x+8)= equation:


Simplifying
(x + 7) + (3x + 8) = 0

Reorder the terms:
(7 + x) + (3x + 8) = 0

Remove parenthesis around (7 + x)
7 + x + (3x + 8) = 0

Reorder the terms:
7 + x + (8 + 3x) = 0

Remove parenthesis around (8 + 3x)
7 + x + 8 + 3x = 0

Reorder the terms:
7 + 8 + x + 3x = 0

Combine like terms: 7 + 8 = 15
15 + x + 3x = 0

Combine like terms: x + 3x = 4x
15 + 4x = 0

Solving
15 + 4x = 0

Solving for variable 'x'.

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

Add '-15' to each side of the equation.
15 + -15 + 4x = 0 + -15

Combine like terms: 15 + -15 = 0
0 + 4x = 0 + -15
4x = 0 + -15

Combine like terms: 0 + -15 = -15
4x = -15

Divide each side by '4'.
x = -3.75

Simplifying
x = -3.75

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