(30+x)+(40+x)=

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Solution for (30+x)+(40+x)= equation:


Simplifying
(30 + x) + (40 + x) = 0

Remove parenthesis around (30 + x)
30 + x + (40 + x) = 0

Remove parenthesis around (40 + x)
30 + x + 40 + x = 0

Reorder the terms:
30 + 40 + x + x = 0

Combine like terms: 30 + 40 = 70
70 + x + x = 0

Combine like terms: x + x = 2x
70 + 2x = 0

Solving
70 + 2x = 0

Solving for variable 'x'.

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

Add '-70' to each side of the equation.
70 + -70 + 2x = 0 + -70

Combine like terms: 70 + -70 = 0
0 + 2x = 0 + -70
2x = 0 + -70

Combine like terms: 0 + -70 = -70
2x = -70

Divide each side by '2'.
x = -35

Simplifying
x = -35

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