3x-9+x=30units

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Solution for 3x-9+x=30units equation:


Simplifying
3x + -9 + x = 30units

Reorder the terms:
-9 + 3x + x = 30units

Combine like terms: 3x + x = 4x
-9 + 4x = 30units

Solving
-9 + 4x = 30instu

Solving for variable 'x'.

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

Add '9' to each side of the equation.
-9 + 9 + 4x = 9 + 30instu

Combine like terms: -9 + 9 = 0
0 + 4x = 9 + 30instu
4x = 9 + 30instu

Divide each side by '4'.
x = 2.25 + 7.5instu

Simplifying
x = 2.25 + 7.5instu

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