2(27+4*X)+7*X=21

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Solution for 2(27+4*X)+7*X=21 equation: 


Simplifying
2(27 + 4X) + 7X = 21
(27 * 2 + 4X * 2) + 7X = 21
(54 + 8X) + 7X = 21

Combine like terms: 8X + 7X = 15X
54 + 15X = 21

Solving
54 + 15X = 21

Solving for variable 'X'.

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

Add '-54' to each side of the equation.
54 + -54 + 15X = 21 + -54

Combine like terms: 54 + -54 = 0
0 + 15X = 21 + -54
15X = 21 + -54

Combine like terms: 21 + -54 = -33
15X = -33

Divide each side by '15'.
X = -2.2

Simplifying
X = -2.2

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