2.5r+4=-12

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Solution for 2.5r+4=-12 equation: 


Simplifying
2.5r + 4 = -12

Reorder the terms:
4 + 2.5r = -12

Solving
4 + 2.5r = -12

Solving for variable 'r'.

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

Add '-4' to each side of the equation.
4 + -4 + 2.5r = -12 + -4

Combine like terms: 4 + -4 = 0
0 + 2.5r = -12 + -4
2.5r = -12 + -4

Combine like terms: -12 + -4 = -16
2.5r = -16

Divide each side by '2.5'.
r = -6.4

Simplifying
r = -6.4

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