4x-8+9x=20

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Solution for 4x-8+9x=20 equation:


Simplifying
4x + -8 + 9x = 20

Reorder the terms:
-8 + 4x + 9x = 20

Combine like terms: 4x + 9x = 13x
-8 + 13x = 20

Solving
-8 + 13x = 20

Solving for variable 'x'.

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

Add '8' to each side of the equation.
-8 + 8 + 13x = 20 + 8

Combine like terms: -8 + 8 = 0
0 + 13x = 20 + 8
13x = 20 + 8

Combine like terms: 20 + 8 = 28
13x = 28

Divide each side by '13'.
x = 2.153846154

Simplifying
x = 2.153846154

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