-21-4x=-5-8x

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Solution for -21-4x=-5-8x equation:


Simplifying
-21 + -4x = -5 + -8x

Solving
-21 + -4x = -5 + -8x

Solving for variable 'x'.

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

Add '8x' to each side of the equation.
-21 + -4x + 8x = -5 + -8x + 8x

Combine like terms: -4x + 8x = 4x
-21 + 4x = -5 + -8x + 8x

Combine like terms: -8x + 8x = 0
-21 + 4x = -5 + 0
-21 + 4x = -5

Add '21' to each side of the equation.
-21 + 21 + 4x = -5 + 21

Combine like terms: -21 + 21 = 0
0 + 4x = -5 + 21
4x = -5 + 21

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

Divide each side by '4'.
x = 4

Simplifying
x = 4

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