7x(3x+x)=

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Solution for 7x(3x+x)= equation: 


Simplifying
7x(3x + x) = 0

Combine like terms: 3x + x = 4x
7x(4x) = 0

Remove parenthesis around (4x)
7x * 4x = 0

Reorder the terms for easier multiplication:
7 * 4x * x = 0

Multiply 7 * 4
28x * x = 0

Multiply x * x
28x2 = 0

Solving
28x2 = 0

Solving for variable 'x'.

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

Divide each side by '28'.
x2 = 0

Simplifying
x2 = 0

Take the square root of each side:
x = {0}

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