3x+(x+1)=x+9

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Solution for 3x+(x+1)=x+9 equation:


Simplifying
3x + (x + 1) = x + 9

Reorder the terms:
3x + (1 + x) = x + 9

Remove parenthesis around (1 + x)
3x + 1 + x = x + 9

Reorder the terms:
1 + 3x + x = x + 9

Combine like terms: 3x + x = 4x
1 + 4x = x + 9

Reorder the terms:
1 + 4x = 9 + x

Solving
1 + 4x = 9 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
1 + 4x + -1x = 9 + x + -1x

Combine like terms: 4x + -1x = 3x
1 + 3x = 9 + x + -1x

Combine like terms: x + -1x = 0
1 + 3x = 9 + 0
1 + 3x = 9

Add '-1' to each side of the equation.
1 + -1 + 3x = 9 + -1

Combine like terms: 1 + -1 = 0
0 + 3x = 9 + -1
3x = 9 + -1

Combine like terms: 9 + -1 = 8
3x = 8

Divide each side by '3'.
x = 2.666666667

Simplifying
x = 2.666666667

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