3x+4x=a+b

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Solution for 3x+4x=a+b equation: 


Simplifying
3x + 4x = a + b

Combine like terms: 3x + 4x = 7x
7x = a + b

Solving
7x = a + b

Solving for variable 'x'.

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

Divide each side by '7'.
x = 0.1428571429a + 0.1428571429b

Simplifying
x = 0.1428571429a + 0.1428571429b

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