r-18.7=-4.2

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Solution for r-18.7=-4.2 equation: 


Simplifying
r + -18.7 = -4.2

Reorder the terms:
-18.7 + r = -4.2

Solving
-18.7 + r = -4.2

Solving for variable 'r'.

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

Add '18.7' to each side of the equation.
-18.7 + 18.7 + r = -4.2 + 18.7

Combine like terms: -18.7 + 18.7 = 0.0
0.0 + r = -4.2 + 18.7
r = -4.2 + 18.7

Combine like terms: -4.2 + 18.7 = 14.5
r = 14.5

Simplifying
r = 14.5

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