x+3x+(3x-30)=320

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Solution for x+3x+(3x-30)=320 equation:


Simplifying
x + 3x + (3x + -30) = 320

Reorder the terms:
x + 3x + (-30 + 3x) = 320

Remove parenthesis around (-30 + 3x)
x + 3x + -30 + 3x = 320

Reorder the terms:
-30 + x + 3x + 3x = 320

Combine like terms: x + 3x = 4x
-30 + 4x + 3x = 320

Combine like terms: 4x + 3x = 7x
-30 + 7x = 320

Solving
-30 + 7x = 320

Solving for variable 'x'.

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

Add '30' to each side of the equation.
-30 + 30 + 7x = 320 + 30

Combine like terms: -30 + 30 = 0
0 + 7x = 320 + 30
7x = 320 + 30

Combine like terms: 320 + 30 = 350
7x = 350

Divide each side by '7'.
x = 50

Simplifying
x = 50

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