20X-5X+3X+21=0

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Solution for 20X-5X+3X+21=0 equation:


Simplifying
20X + -5X + 3X + 21 = 0

Reorder the terms:
21 + 20X + -5X + 3X = 0

Combine like terms: 20X + -5X = 15X
21 + 15X + 3X = 0

Combine like terms: 15X + 3X = 18X
21 + 18X = 0

Solving
21 + 18X = 0

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 + 18X = 0 + -21

Combine like terms: 21 + -21 = 0
0 + 18X = 0 + -21
18X = 0 + -21

Combine like terms: 0 + -21 = -21
18X = -21

Divide each side by '18'.
X = -1.166666667

Simplifying
X = -1.166666667

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