x+3x+(18+x)=22.4

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Solution for x+3x+(18+x)=22.4 equation:


Simplifying
x + 3x + (18 + x) = 22.4

Remove parenthesis around (18 + x)
x + 3x + 18 + x = 22.4

Reorder the terms:
18 + x + 3x + x = 22.4

Combine like terms: x + 3x = 4x
18 + 4x + x = 22.4

Combine like terms: 4x + x = 5x
18 + 5x = 22.4

Solving
18 + 5x = 22.4

Solving for variable 'x'.

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

Add '-18' to each side of the equation.
18 + -18 + 5x = 22.4 + -18

Combine like terms: 18 + -18 = 0
0 + 5x = 22.4 + -18
5x = 22.4 + -18

Combine like terms: 22.4 + -18 = 4.4
5x = 4.4

Divide each side by '5'.
x = 0.88

Simplifying
x = 0.88

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