5x+2x-9=20

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Solution for 5x+2x-9=20 equation:


Simplifying
5x + 2x + -9 = 20

Reorder the terms:
-9 + 5x + 2x = 20

Combine like terms: 5x + 2x = 7x
-9 + 7x = 20

Solving
-9 + 7x = 20

Solving for variable 'x'.

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

Add '9' to each side of the equation.
-9 + 9 + 7x = 20 + 9

Combine like terms: -9 + 9 = 0
0 + 7x = 20 + 9
7x = 20 + 9

Combine like terms: 20 + 9 = 29
7x = 29

Divide each side by '7'.
x = 4.142857143

Simplifying
x = 4.142857143

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