-4x+21=5

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Solution for -4x+21=5 equation: 


Simplifying
-4x + 21 = 5

Reorder the terms:
21 + -4x = 5

Solving
21 + -4x = 5

Solving for variable 'x'.

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

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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