4x+3x+2x+x-4-3-1=20

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Solution for 4x+3x+2x+x-4-3-1=20 equation: 


Simplifying
4x + 3x + 2x + x + -4 + -3 + -1 = 20

Reorder the terms:
-4 + -3 + -1 + 4x + 3x + 2x + x = 20

Combine like terms: -4 + -3 = -7
-7 + -1 + 4x + 3x + 2x + x = 20

Combine like terms: -7 + -1 = -8
-8 + 4x + 3x + 2x + x = 20

Combine like terms: 4x + 3x = 7x
-8 + 7x + 2x + x = 20

Combine like terms: 7x + 2x = 9x
-8 + 9x + x = 20

Combine like terms: 9x + x = 10x
-8 + 10x = 20

Solving
-8 + 10x = 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 + 10x = 20 + 8

Combine like terms: -8 + 8 = 0
0 + 10x = 20 + 8
10x = 20 + 8

Combine like terms: 20 + 8 = 28
10x = 28

Divide each side by '10'.
x = 2.8

Simplifying
x = 2.8

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