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

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Solution for -5x-1(5x+21)=21 equation:


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

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

Reorder the terms:
-21 + -5x + -5x = 21

Combine like terms: -5x + -5x = -10x
-21 + -10x = 21

Solving
-21 + -10x = 21

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 + -10x = 21 + 21

Combine like terms: -21 + 21 = 0
0 + -10x = 21 + 21
-10x = 21 + 21

Combine like terms: 21 + 21 = 42
-10x = 42

Divide each side by '-10'.
x = -4.2

Simplifying
x = -4.2

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