6x+9=4(-x)

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Solution for 6x+9=4(-x) equation:


Simplifying
6x + 9 = 4(-1x)

Reorder the terms:
9 + 6x = 4(-1x)

Remove parenthesis around (-1x)
9 + 6x = 4 * -1x

Multiply 4 * -1
9 + 6x = -4x

Solving
9 + 6x = -4x

Solving for variable 'x'.

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

Add '4x' to each side of the equation.
9 + 6x + 4x = -4x + 4x

Combine like terms: 6x + 4x = 10x
9 + 10x = -4x + 4x

Combine like terms: -4x + 4x = 0
9 + 10x = 0

Add '-9' to each side of the equation.
9 + -9 + 10x = 0 + -9

Combine like terms: 9 + -9 = 0
0 + 10x = 0 + -9
10x = 0 + -9

Combine like terms: 0 + -9 = -9
10x = -9

Divide each side by '10'.
x = -0.9

Simplifying
x = -0.9

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