x+8+x+11+x=40

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Solution for x+8+x+11+x=40 equation: 


Simplifying
x + 8 + x + 11 + x = 40

Reorder the terms:
8 + 11 + x + x + x = 40

Combine like terms: 8 + 11 = 19
19 + x + x + x = 40

Combine like terms: x + x = 2x
19 + 2x + x = 40

Combine like terms: 2x + x = 3x
19 + 3x = 40

Solving
19 + 3x = 40

Solving for variable 'x'.

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

Add '-19' to each side of the equation.
19 + -19 + 3x = 40 + -19

Combine like terms: 19 + -19 = 0
0 + 3x = 40 + -19
3x = 40 + -19

Combine like terms: 40 + -19 = 21
3x = 21

Divide each side by '3'.
x = 7

Simplifying
x = 7

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