328=128.2+r

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Solution for 328=128.2+r equation: 


Simplifying
328 = 128.2 + r

Solving
328 = 128.2 + r

Solving for variable 'r'.

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

Add '-1r' to each side of the equation.
328 + -1r = 128.2 + r + -1r

Combine like terms: r + -1r = 0
328 + -1r = 128.2 + 0
328 + -1r = 128.2

Add '-328' to each side of the equation.
328 + -328 + -1r = 128.2 + -328

Combine like terms: 328 + -328 = 0
0 + -1r = 128.2 + -328
-1r = 128.2 + -328

Combine like terms: 128.2 + -328 = -199.8
-1r = -199.8

Divide each side by '-1'.
r = 199.8

Simplifying
r = 199.8

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