9=-5(4x+1)+21x

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Solution for 9=-5(4x+1)+21x equation:


Simplifying
9 = -5(4x + 1) + 21x

Reorder the terms:
9 = -5(1 + 4x) + 21x
9 = (1 * -5 + 4x * -5) + 21x
9 = (-5 + -20x) + 21x

Combine like terms: -20x + 21x = 1x
9 = -5 + 1x

Solving
9 = -5 + 1x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
9 + -1x = -5 + 1x + -1x

Combine like terms: 1x + -1x = 0
9 + -1x = -5 + 0
9 + -1x = -5

Add '-9' to each side of the equation.
9 + -9 + -1x = -5 + -9

Combine like terms: 9 + -9 = 0
0 + -1x = -5 + -9
-1x = -5 + -9

Combine like terms: -5 + -9 = -14
-1x = -14

Divide each side by '-1'.
x = 14

Simplifying
x = 14

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