2(3x+4)=-9x+21

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Solution for 2(3x+4)=-9x+21 equation:


Simplifying
2(3x + 4) = -9x + 21

Reorder the terms:
2(4 + 3x) = -9x + 21
(4 * 2 + 3x * 2) = -9x + 21
(8 + 6x) = -9x + 21

Reorder the terms:
8 + 6x = 21 + -9x

Solving
8 + 6x = 21 + -9x

Solving for variable 'x'.

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

Add '9x' to each side of the equation.
8 + 6x + 9x = 21 + -9x + 9x

Combine like terms: 6x + 9x = 15x
8 + 15x = 21 + -9x + 9x

Combine like terms: -9x + 9x = 0
8 + 15x = 21 + 0
8 + 15x = 21

Add '-8' to each side of the equation.
8 + -8 + 15x = 21 + -8

Combine like terms: 8 + -8 = 0
0 + 15x = 21 + -8
15x = 21 + -8

Combine like terms: 21 + -8 = 13
15x = 13

Divide each side by '15'.
x = 0.8666666667

Simplifying
x = 0.8666666667

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