3+(2x+18)=6x-15

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Solution for 3+(2x+18)=6x-15 equation:


Simplifying
3 + (2x + 18) = 6x + -15

Reorder the terms:
3 + (18 + 2x) = 6x + -15

Remove parenthesis around (18 + 2x)
3 + 18 + 2x = 6x + -15

Combine like terms: 3 + 18 = 21
21 + 2x = 6x + -15

Reorder the terms:
21 + 2x = -15 + 6x

Solving
21 + 2x = -15 + 6x

Solving for variable 'x'.

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

Add '-6x' to each side of the equation.
21 + 2x + -6x = -15 + 6x + -6x

Combine like terms: 2x + -6x = -4x
21 + -4x = -15 + 6x + -6x

Combine like terms: 6x + -6x = 0
21 + -4x = -15 + 0
21 + -4x = -15

Add '-21' to each side of the equation.
21 + -21 + -4x = -15 + -21

Combine like terms: 21 + -21 = 0
0 + -4x = -15 + -21
-4x = -15 + -21

Combine like terms: -15 + -21 = -36
-4x = -36

Divide each side by '-4'.
x = 9

Simplifying
x = 9

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