-5x-1(4x+16)=21

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Solution for -5x-1(4x+16)=21 equation:


Simplifying
-5x + -1(4x + 16) = 21

Reorder the terms:
-5x + -1(16 + 4x) = 21
-5x + (16 * -1 + 4x * -1) = 21
-5x + (-16 + -4x) = 21

Reorder the terms:
-16 + -5x + -4x = 21

Combine like terms: -5x + -4x = -9x
-16 + -9x = 21

Solving
-16 + -9x = 21

Solving for variable 'x'.

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

Add '16' to each side of the equation.
-16 + 16 + -9x = 21 + 16

Combine like terms: -16 + 16 = 0
0 + -9x = 21 + 16
-9x = 21 + 16

Combine like terms: 21 + 16 = 37
-9x = 37

Divide each side by '-9'.
x = -4.111111111

Simplifying
x = -4.111111111

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