-21=5+4x

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Solution for -21=5+4x equation:


Simplifying
-21 = 5 + 4x

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

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

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

Simplifying
x = -6.5

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