x+3x=7-3

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


Simplifying
x + 3x = 7 + -3

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

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

Solving
4x = 4

Solving for variable 'x'.

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

Divide each side by '4'.
x = 1

Simplifying
x = 1

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