13.8+9.4r=3.7(2r+4)

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Solution for 13.8+9.4r=3.7(2r+4) equation: 


Simplifying
13.8 + 9.4r = 3.7(2r + 4)

Reorder the terms:
13.8 + 9.4r = 3.7(4 + 2r)
13.8 + 9.4r = (4 * 3.7 + 2r * 3.7)
13.8 + 9.4r = (14.8 + 7.4r)

Solving
13.8 + 9.4r = 14.8 + 7.4r

Solving for variable 'r'.

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

Add '-7.4r' to each side of the equation.
13.8 + 9.4r + -7.4r = 14.8 + 7.4r + -7.4r

Combine like terms: 9.4r + -7.4r = 2r
13.8 + 2r = 14.8 + 7.4r + -7.4r

Combine like terms: 7.4r + -7.4r = 0.0
13.8 + 2r = 14.8 + 0.0
13.8 + 2r = 14.8

Add '-13.8' to each side of the equation.
13.8 + -13.8 + 2r = 14.8 + -13.8

Combine like terms: 13.8 + -13.8 = 0.0
0.0 + 2r = 14.8 + -13.8
2r = 14.8 + -13.8

Combine like terms: 14.8 + -13.8 = 1
2r = 1

Divide each side by '2'.
r = 0.5

Simplifying
r = 0.5

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