21+7x=-9x+2x-16

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Solution for 21+7x=-9x+2x-16 equation:


Simplifying
21 + 7x = -9x + 2x + -16

Reorder the terms:
21 + 7x = -16 + -9x + 2x

Combine like terms: -9x + 2x = -7x
21 + 7x = -16 + -7x

Solving
21 + 7x = -16 + -7x

Solving for variable 'x'.

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

Add '7x' to each side of the equation.
21 + 7x + 7x = -16 + -7x + 7x

Combine like terms: 7x + 7x = 14x
21 + 14x = -16 + -7x + 7x

Combine like terms: -7x + 7x = 0
21 + 14x = -16 + 0
21 + 14x = -16

Add '-21' to each side of the equation.
21 + -21 + 14x = -16 + -21

Combine like terms: 21 + -21 = 0
0 + 14x = -16 + -21
14x = -16 + -21

Combine like terms: -16 + -21 = -37
14x = -37

Divide each side by '14'.
x = -2.642857143

Simplifying
x = -2.642857143

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