4=0.2(r-0.08)

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Solution for 4=0.2(r-0.08) equation:


Simplifying
4 = 0.2(r + -0.08)

Reorder the terms:
4 = 0.2(-0.08 + r)
4 = (-0.08 * 0.2 + r * 0.2)
4 = (-0.016 + 0.2r)

Solving
4 = -0.016 + 0.2r

Solving for variable 'r'.

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

Add '-0.2r' to each side of the equation.
4 + -0.2r = -0.016 + 0.2r + -0.2r

Combine like terms: 0.2r + -0.2r = 0.0
4 + -0.2r = -0.016 + 0.0
4 + -0.2r = -0.016

Add '-4' to each side of the equation.
4 + -4 + -0.2r = -0.016 + -4

Combine like terms: 4 + -4 = 0
0 + -0.2r = -0.016 + -4
-0.2r = -0.016 + -4

Combine like terms: -0.016 + -4 = -4.016
-0.2r = -4.016

Divide each side by '-0.2'.
r = 20.08

Simplifying
r = 20.08

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