-4(4x-3)+9=-16x+21

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Solution for -4(4x-3)+9=-16x+21 equation: 


Simplifying
-4(4x + -3) + 9 = -16x + 21

Reorder the terms:
-4(-3 + 4x) + 9 = -16x + 21
(-3 * -4 + 4x * -4) + 9 = -16x + 21
(12 + -16x) + 9 = -16x + 21

Reorder the terms:
12 + 9 + -16x = -16x + 21

Combine like terms: 12 + 9 = 21
21 + -16x = -16x + 21

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

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

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

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

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

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

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

Solving
0 = 0

Couldn't find a variable to solve for.

This equation is an identity, all real numbers are solutions.

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