9=5x+3(-3x)

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Solution for 9=5x+3(-3x) equation:


Simplifying
9 = 5x + 3(-3x)

Remove parenthesis around (-3x)
9 = 5x + 3 * -3x

Multiply 3 * -3
9 = 5x + -9x

Combine like terms: 5x + -9x = -4x
9 = -4x

Solving
9 = -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 + 4x = -4x + 4x

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

Add '-9' to each side of the equation.
9 + -9 + 4x = 0 + -9

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

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

Divide each side by '4'.
x = -2.25

Simplifying
x = -2.25

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