3(x+4)-2x-5-7x=20

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Solution for 3(x+4)-2x-5-7x=20 equation:


Simplifying
3(x + 4) + -2x + -5 + -7x = 20

Reorder the terms:
3(4 + x) + -2x + -5 + -7x = 20
(4 * 3 + x * 3) + -2x + -5 + -7x = 20
(12 + 3x) + -2x + -5 + -7x = 20

Reorder the terms:
12 + -5 + 3x + -2x + -7x = 20

Combine like terms: 12 + -5 = 7
7 + 3x + -2x + -7x = 20

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

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

Solving
7 + -6x = 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 + -6x = 20 + -7

Combine like terms: 7 + -7 = 0
0 + -6x = 20 + -7
-6x = 20 + -7

Combine like terms: 20 + -7 = 13
-6x = 13

Divide each side by '-6'.
x = -2.166666667

Simplifying
x = -2.166666667

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