x+2x+(x-7)=1155

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Solution for x+2x+(x-7)=1155 equation:


Simplifying
x + 2x + (x + -7) = 1155

Reorder the terms:
x + 2x + (-7 + x) = 1155

Remove parenthesis around (-7 + x)
x + 2x + -7 + x = 1155

Reorder the terms:
-7 + x + 2x + x = 1155

Combine like terms: x + 2x = 3x
-7 + 3x + x = 1155

Combine like terms: 3x + x = 4x
-7 + 4x = 1155

Solving
-7 + 4x = 1155

Solving for variable 'x'.

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

Add '7' to each side of the equation.
-7 + 7 + 4x = 1155 + 7

Combine like terms: -7 + 7 = 0
0 + 4x = 1155 + 7
4x = 1155 + 7

Combine like terms: 1155 + 7 = 1162
4x = 1162

Divide each side by '4'.
x = 290.5

Simplifying
x = 290.5

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