5x+4(-7x)=9

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Solution for 5x+4(-7x)=9 equation: 


Simplifying
5x + 4(-7x) = 9

Remove parenthesis around (-7x)
5x + 4 * -7x = 9

Multiply 4 * -7
5x + -28x = 9

Combine like terms: 5x + -28x = -23x
-23x = 9

Solving
-23x = 9

Solving for variable 'x'.

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

Divide each side by '-23'.
x = -0.3913043478

Simplifying
x = -0.3913043478

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