4+2x+4+2x+7x-1+7x-1=20

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Solution for 4+2x+4+2x+7x-1+7x-1=20 equation:


Simplifying
4 + 2x + 4 + 2x + 7x + -1 + 7x + -1 = 20

Reorder the terms:
4 + 4 + -1 + -1 + 2x + 2x + 7x + 7x = 20

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

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

Combine like terms: 7 + -1 = 6
6 + 2x + 2x + 7x + 7x = 20

Combine like terms: 2x + 2x = 4x
6 + 4x + 7x + 7x = 20

Combine like terms: 4x + 7x = 11x
6 + 11x + 7x = 20

Combine like terms: 11x + 7x = 18x
6 + 18x = 20

Solving
6 + 18x = 20

Solving for variable 'x'.

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

Add '-6' to each side of the equation.
6 + -6 + 18x = 20 + -6

Combine like terms: 6 + -6 = 0
0 + 18x = 20 + -6
18x = 20 + -6

Combine like terms: 20 + -6 = 14
18x = 14

Divide each side by '18'.
x = 0.7777777778

Simplifying
x = 0.7777777778

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