2.2(r-1.0)=6.2+3.4r

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Solution for 2.2(r-1.0)=6.2+3.4r equation: 


Simplifying
2.2(r + -1.0) = 6.2 + 3.4r

Reorder the terms:
2.2(-1.0 + r) = 6.2 + 3.4r
(-1.0 * 2.2 + r * 2.2) = 6.2 + 3.4r
(-2.2 + 2.2r) = 6.2 + 3.4r

Solving
-2.2 + 2.2r = 6.2 + 3.4r

Solving for variable 'r'.

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

Add '-3.4r' to each side of the equation.
-2.2 + 2.2r + -3.4r = 6.2 + 3.4r + -3.4r

Combine like terms: 2.2r + -3.4r = -1.2r
-2.2 + -1.2r = 6.2 + 3.4r + -3.4r

Combine like terms: 3.4r + -3.4r = 0.0
-2.2 + -1.2r = 6.2 + 0.0
-2.2 + -1.2r = 6.2

Add '2.2' to each side of the equation.
-2.2 + 2.2 + -1.2r = 6.2 + 2.2

Combine like terms: -2.2 + 2.2 = 0.0
0.0 + -1.2r = 6.2 + 2.2
-1.2r = 6.2 + 2.2

Combine like terms: 6.2 + 2.2 = 8.4
-1.2r = 8.4

Divide each side by '-1.2'.
r = -7

Simplifying
r = -7

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