(x-3)+(2x-4)=20

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Solution for (x-3)+(2x-4)=20 equation:


Simplifying
(x + -3) + (2x + -4) = 20

Reorder the terms:
(-3 + x) + (2x + -4) = 20

Remove parenthesis around (-3 + x)
-3 + x + (2x + -4) = 20

Reorder the terms:
-3 + x + (-4 + 2x) = 20

Remove parenthesis around (-4 + 2x)
-3 + x + -4 + 2x = 20

Reorder the terms:
-3 + -4 + x + 2x = 20

Combine like terms: -3 + -4 = -7
-7 + x + 2x = 20

Combine like terms: x + 2x = 3x
-7 + 3x = 20

Solving
-7 + 3x = 20

Solving for variable 'x'.

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

Add '7' to each side of the equation.
-7 + 7 + 3x = 20 + 7

Combine like terms: -7 + 7 = 0
0 + 3x = 20 + 7
3x = 20 + 7

Combine like terms: 20 + 7 = 27
3x = 27

Divide each side by '3'.
x = 9

Simplifying
x = 9

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