8.4r-6.3=6.3+2.1r

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Solution for 8.4r-6.3=6.3+2.1r equation: 


Simplifying
8.4r + -6.3 = 6.3 + 2.1r

Reorder the terms:
-6.3 + 8.4r = 6.3 + 2.1r

Solving
-6.3 + 8.4r = 6.3 + 2.1r

Solving for variable 'r'.

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

Add '-2.1r' to each side of the equation.
-6.3 + 8.4r + -2.1r = 6.3 + 2.1r + -2.1r

Combine like terms: 8.4r + -2.1r = 6.3r
-6.3 + 6.3r = 6.3 + 2.1r + -2.1r

Combine like terms: 2.1r + -2.1r = 0.0
-6.3 + 6.3r = 6.3 + 0.0
-6.3 + 6.3r = 6.3

Add '6.3' to each side of the equation.
-6.3 + 6.3 + 6.3r = 6.3 + 6.3

Combine like terms: -6.3 + 6.3 = 0.0
0.0 + 6.3r = 6.3 + 6.3
6.3r = 6.3 + 6.3

Combine like terms: 6.3 + 6.3 = 12.6
6.3r = 12.6

Divide each side by '6.3'.
r = 2

Simplifying
r = 2

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