4x+9-x+4=20

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Solution for 4x+9-x+4=20 equation:


Simplifying
4x + 9 + -1x + 4 = 20

Reorder the terms:
9 + 4 + 4x + -1x = 20

Combine like terms: 9 + 4 = 13
13 + 4x + -1x = 20

Combine like terms: 4x + -1x = 3x
13 + 3x = 20

Solving
13 + 3x = 20

Solving for variable 'x'.

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

Add '-13' to each side of the equation.
13 + -13 + 3x = 20 + -13

Combine like terms: 13 + -13 = 0
0 + 3x = 20 + -13
3x = 20 + -13

Combine like terms: 20 + -13 = 7
3x = 7

Divide each side by '3'.
x = 2.333333333

Simplifying
x = 2.333333333

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