-3r+2+.8r-7=

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Solution for -3r+2+.8r-7= equation:


Simplifying
-3r + 2 + 0.8r + -7 = 0

Reorder the terms:
2 + -7 + -3r + 0.8r = 0

Combine like terms: 2 + -7 = -5
-5 + -3r + 0.8r = 0

Combine like terms: -3r + 0.8r = -2.2r
-5 + -2.2r = 0

Solving
-5 + -2.2r = 0

Solving for variable 'r'.

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

Add '5' to each side of the equation.
-5 + 5 + -2.2r = 0 + 5

Combine like terms: -5 + 5 = 0
0 + -2.2r = 0 + 5
-2.2r = 0 + 5

Combine like terms: 0 + 5 = 5
-2.2r = 5

Divide each side by '-2.2'.
r = -2.272727273

Simplifying
r = -2.272727273

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