2(3x-1-1)+3=21

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Solution for 2(3x-1-1)+3=21 equation:


Simplifying
2(3x + -1 + -1) + 3 = 21

Reorder the terms:
2(-1 + -1 + 3x) + 3 = 21

Combine like terms: -1 + -1 = -2
2(-2 + 3x) + 3 = 21
(-2 * 2 + 3x * 2) + 3 = 21
(-4 + 6x) + 3 = 21

Reorder the terms:
-4 + 3 + 6x = 21

Combine like terms: -4 + 3 = -1
-1 + 6x = 21

Solving
-1 + 6x = 21

Solving for variable 'x'.

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

Add '1' to each side of the equation.
-1 + 1 + 6x = 21 + 1

Combine like terms: -1 + 1 = 0
0 + 6x = 21 + 1
6x = 21 + 1

Combine like terms: 21 + 1 = 22
6x = 22

Divide each side by '6'.
x = 3.666666667

Simplifying
x = 3.666666667

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