3(1-3x)-(x+5)=20

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Solution for 3(1-3x)-(x+5)=20 equation:


Simplifying
3(1 + -3x) + -1(x + 5) = 20
(1 * 3 + -3x * 3) + -1(x + 5) = 20
(3 + -9x) + -1(x + 5) = 20

Reorder the terms:
3 + -9x + -1(5 + x) = 20
3 + -9x + (5 * -1 + x * -1) = 20
3 + -9x + (-5 + -1x) = 20

Reorder the terms:
3 + -5 + -9x + -1x = 20

Combine like terms: 3 + -5 = -2
-2 + -9x + -1x = 20

Combine like terms: -9x + -1x = -10x
-2 + -10x = 20

Solving
-2 + -10x = 20

Solving for variable 'x'.

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

Add '2' to each side of the equation.
-2 + 2 + -10x = 20 + 2

Combine like terms: -2 + 2 = 0
0 + -10x = 20 + 2
-10x = 20 + 2

Combine like terms: 20 + 2 = 22
-10x = 22

Divide each side by '-10'.
x = -2.2

Simplifying
x = -2.2

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