9x+4(3x)=42

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Solution for 9x+4(3x)=42 equation: 


Simplifying
9x + 4(3x) = 42

Remove parenthesis around (3x)
9x + 4 * 3x = 42

Multiply 4 * 3
9x + 12x = 42

Combine like terms: 9x + 12x = 21x
21x = 42

Solving
21x = 42

Solving for variable 'x'.

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

Divide each side by '21'.
x = 2

Simplifying
x = 2

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