21x+45.2=3.2-8.4x

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Solution for 21x+45.2=3.2-8.4x equation: 


Simplifying
21x + 45.2 = 3.2 + -8.4x

Reorder the terms:
45.2 + 21x = 3.2 + -8.4x

Solving
45.2 + 21x = 3.2 + -8.4x

Solving for variable 'x'.

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

Add '8.4x' to each side of the equation.
45.2 + 21x + 8.4x = 3.2 + -8.4x + 8.4x

Combine like terms: 21x + 8.4x = 29.4x
45.2 + 29.4x = 3.2 + -8.4x + 8.4x

Combine like terms: -8.4x + 8.4x = 0.0
45.2 + 29.4x = 3.2 + 0.0
45.2 + 29.4x = 3.2

Add '-45.2' to each side of the equation.
45.2 + -45.2 + 29.4x = 3.2 + -45.2

Combine like terms: 45.2 + -45.2 = 0.0
0.0 + 29.4x = 3.2 + -45.2
29.4x = 3.2 + -45.2

Combine like terms: 3.2 + -45.2 = -42
29.4x = -42

Divide each side by '29.4'.
x = -1.428571429

Simplifying
x = -1.428571429

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