-9=7(-3x)

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Solution for -9=7(-3x) equation:


Simplifying
-9 = 7(-3x)

Remove parenthesis around (-3x)
-9 = 7 * -3x

Multiply 7 * -3
-9 = -21x

Solving
-9 = -21x

Solving for variable 'x'.

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

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

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

Add '9' to each side of the equation.
-9 + 9 + 21x = 0 + 9

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

Combine like terms: 0 + 9 = 9
21x = 9

Divide each side by '21'.
x = 0.4285714286

Simplifying
x = 0.4285714286

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