12-0.8(r-16)=0.4(11r-16)

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Solution for 12-0.8(r-16)=0.4(11r-16) equation:


Simplifying
12 + -0.8(r + -16) = 0.4(11r + -16)

Reorder the terms:
12 + -0.8(-16 + r) = 0.4(11r + -16)
12 + (-16 * -0.8 + r * -0.8) = 0.4(11r + -16)
12 + (12.8 + -0.8r) = 0.4(11r + -16)

Combine like terms: 12 + 12.8 = 24.8
24.8 + -0.8r = 0.4(11r + -16)

Reorder the terms:
24.8 + -0.8r = 0.4(-16 + 11r)
24.8 + -0.8r = (-16 * 0.4 + 11r * 0.4)
24.8 + -0.8r = (-6.4 + 4.4r)

Solving
24.8 + -0.8r = -6.4 + 4.4r

Solving for variable 'r'.

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

Add '-4.4r' to each side of the equation.
24.8 + -0.8r + -4.4r = -6.4 + 4.4r + -4.4r

Combine like terms: -0.8r + -4.4r = -5.2r
24.8 + -5.2r = -6.4 + 4.4r + -4.4r

Combine like terms: 4.4r + -4.4r = 0.0
24.8 + -5.2r = -6.4 + 0.0
24.8 + -5.2r = -6.4

Add '-24.8' to each side of the equation.
24.8 + -24.8 + -5.2r = -6.4 + -24.8

Combine like terms: 24.8 + -24.8 = 0.0
0.0 + -5.2r = -6.4 + -24.8
-5.2r = -6.4 + -24.8

Combine like terms: -6.4 + -24.8 = -31.2
-5.2r = -31.2

Divide each side by '-5.2'.
r = 6

Simplifying
r = 6

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