x+(3x+4)+(x+5)=215

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Solution for x+(3x+4)+(x+5)=215 equation:


Simplifying
x + (3x + 4) + (x + 5) = 215

Reorder the terms:
x + (4 + 3x) + (x + 5) = 215

Remove parenthesis around (4 + 3x)
x + 4 + 3x + (x + 5) = 215

Reorder the terms:
x + 4 + 3x + (5 + x) = 215

Remove parenthesis around (5 + x)
x + 4 + 3x + 5 + x = 215

Reorder the terms:
4 + 5 + x + 3x + x = 215

Combine like terms: 4 + 5 = 9
9 + x + 3x + x = 215

Combine like terms: x + 3x = 4x
9 + 4x + x = 215

Combine like terms: 4x + x = 5x
9 + 5x = 215

Solving
9 + 5x = 215

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 + 5x = 215 + -9

Combine like terms: 9 + -9 = 0
0 + 5x = 215 + -9
5x = 215 + -9

Combine like terms: 215 + -9 = 206
5x = 206

Divide each side by '5'.
x = 41.2

Simplifying
x = 41.2

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