-(x+1)=-4x+20

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Solution for -(x+1)=-4x+20 equation:


Simplifying
-1(x + 1) = -4x + 20

Reorder the terms:
-1(1 + x) = -4x + 20
(1 * -1 + x * -1) = -4x + 20
(-1 + -1x) = -4x + 20

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

Solving
-1 + -1x = 20 + -4x

Solving for variable 'x'.

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

Add '4x' to each side of the equation.
-1 + -1x + 4x = 20 + -4x + 4x

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

Combine like terms: -4x + 4x = 0
-1 + 3x = 20 + 0
-1 + 3x = 20

Add '1' to each side of the equation.
-1 + 1 + 3x = 20 + 1

Combine like terms: -1 + 1 = 0
0 + 3x = 20 + 1
3x = 20 + 1

Combine like terms: 20 + 1 = 21
3x = 21

Divide each side by '3'.
x = 7

Simplifying
x = 7

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