3(5x)+5x+x=84

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Solution for 3(5x)+5x+x=84 equation: 


Simplifying
3(5x) + 5x + x = 84

Remove parenthesis around (5x)
3 * 5x + 5x + x = 84

Multiply 3 * 5
15x + 5x + x = 84

Combine like terms: 15x + 5x = 20x
20x + x = 84

Combine like terms: 20x + x = 21x
21x = 84

Solving
21x = 84

Solving for variable 'x'.

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

Divide each side by '21'.
x = 4

Simplifying
x = 4

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