1r+8.2+0.4=-8.6

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Solution for 1r+8.2+0.4=-8.6 equation:


Simplifying
1r + 8.2 + 0.4 = -8.6

Reorder the terms:
8.2 + 0.4 + 1r = -8.6

Combine like terms: 8.2 + 0.4 = 8.6
8.6 + 1r = -8.6

Solving
8.6 + 1r = -8.6

Solving for variable 'r'.

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

Add '-8.6' to each side of the equation.
8.6 + -8.6 + 1r = -8.6 + -8.6

Combine like terms: 8.6 + -8.6 = 0.0
0.0 + 1r = -8.6 + -8.6
1r = -8.6 + -8.6

Combine like terms: -8.6 + -8.6 = -17.2
1r = -17.2

Divide each side by '1'.
r = -17.2

Simplifying
r = -17.2

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