21-(x+5)=4x+4

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Solution for 21-(x+5)=4x+4 equation:


Simplifying
21 + -1(x + 5) = 4x + 4

Reorder the terms:
21 + -1(5 + x) = 4x + 4
21 + (5 * -1 + x * -1) = 4x + 4
21 + (-5 + -1x) = 4x + 4

Combine like terms: 21 + -5 = 16
16 + -1x = 4x + 4

Reorder the terms:
16 + -1x = 4 + 4x

Solving
16 + -1x = 4 + 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.
16 + -1x + -4x = 4 + 4x + -4x

Combine like terms: -1x + -4x = -5x
16 + -5x = 4 + 4x + -4x

Combine like terms: 4x + -4x = 0
16 + -5x = 4 + 0
16 + -5x = 4

Add '-16' to each side of the equation.
16 + -16 + -5x = 4 + -16

Combine like terms: 16 + -16 = 0
0 + -5x = 4 + -16
-5x = 4 + -16

Combine like terms: 4 + -16 = -12
-5x = -12

Divide each side by '-5'.
x = 2.4

Simplifying
x = 2.4

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