3(x-8)+4x=-9

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Solution for 3(x-8)+4x=-9 equation:


Simplifying
3(x + -8) + 4x = -9

Reorder the terms:
3(-8 + x) + 4x = -9
(-8 * 3 + x * 3) + 4x = -9
(-24 + 3x) + 4x = -9

Combine like terms: 3x + 4x = 7x
-24 + 7x = -9

Solving
-24 + 7x = -9

Solving for variable 'x'.

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

Add '24' to each side of the equation.
-24 + 24 + 7x = -9 + 24

Combine like terms: -24 + 24 = 0
0 + 7x = -9 + 24
7x = -9 + 24

Combine like terms: -9 + 24 = 15
7x = 15

Divide each side by '7'.
x = 2.142857143

Simplifying
x = 2.142857143

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