21x-19x+16-20+3x=

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Solution for 21x-19x+16-20+3x= equation:


Simplifying
21x + -19x + 16 + -20 + 3x = 0

Reorder the terms:
16 + -20 + 21x + -19x + 3x = 0

Combine like terms: 16 + -20 = -4
-4 + 21x + -19x + 3x = 0

Combine like terms: 21x + -19x = 2x
-4 + 2x + 3x = 0

Combine like terms: 2x + 3x = 5x
-4 + 5x = 0

Solving
-4 + 5x = 0

Solving for variable 'x'.

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

Add '4' to each side of the equation.
-4 + 4 + 5x = 0 + 4

Combine like terms: -4 + 4 = 0
0 + 5x = 0 + 4
5x = 0 + 4

Combine like terms: 0 + 4 = 4
5x = 4

Divide each side by '5'.
x = 0.8

Simplifying
x = 0.8

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