3x+x-7=1

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Solution for 3x+x-7=1 equation: 


Simplifying
3x + x + -7 = 1

Reorder the terms:
-7 + 3x + x = 1

Combine like terms: 3x + x = 4x
-7 + 4x = 1

Solving
-7 + 4x = 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 + 4x = 1 + 7

Combine like terms: -7 + 7 = 0
0 + 4x = 1 + 7
4x = 1 + 7

Combine like terms: 1 + 7 = 8
4x = 8

Divide each side by '4'.
x = 2

Simplifying
x = 2

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