3x+x-13=69

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Solution for 3x+x-13=69 equation:


Simplifying
3x + x + -13 = 69

Reorder the terms:
-13 + 3x + x = 69

Combine like terms: 3x + x = 4x
-13 + 4x = 69

Solving
-13 + 4x = 69

Solving for variable 'x'.

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

Add '13' to each side of the equation.
-13 + 13 + 4x = 69 + 13

Combine like terms: -13 + 13 = 0
0 + 4x = 69 + 13
4x = 69 + 13

Combine like terms: 69 + 13 = 82
4x = 82

Divide each side by '4'.
x = 20.5

Simplifying
x = 20.5

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