(-5)-4x=21

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


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

Solving
-5 + -4x = 21

Solving for variable 'x'.

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

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

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

Combine like terms: 21 + 5 = 26
-4x = 26

Divide each side by '-4'.
x = -6.5

Simplifying
x = -6.5

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