4r+2.8=19.6

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Solution for 4r+2.8=19.6 equation: 


Simplifying
4r + 2.8 = 19.6

Reorder the terms:
2.8 + 4r = 19.6

Solving
2.8 + 4r = 19.6

Solving for variable 'r'.

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

Add '-2.8' to each side of the equation.
2.8 + -2.8 + 4r = 19.6 + -2.8

Combine like terms: 2.8 + -2.8 = 0.0
0.0 + 4r = 19.6 + -2.8
4r = 19.6 + -2.8

Combine like terms: 19.6 + -2.8 = 16.8
4r = 16.8

Divide each side by '4'.
r = 4.2

Simplifying
r = 4.2

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