7+x+x=1

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Solution for 7+x+x=1 equation: 


Simplifying
7 + x + x = 1

Combine like terms: x + x = 2x
7 + 2x = 1

Solving
7 + 2x = 1

Solving for variable 'x'.

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

Add '-7' to each side of the equation.
7 + -7 + 2x = 1 + -7

Combine like terms: 7 + -7 = 0
0 + 2x = 1 + -7
2x = 1 + -7

Combine like terms: 1 + -7 = -6
2x = -6

Divide each side by '2'.
x = -3

Simplifying
x = -3

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