-7r+4r=30

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Solution for -7r+4r=30 equation: 


Simplifying
-7r + 4r = 30

Combine like terms: -7r + 4r = -3r
-3r = 30

Solving
-3r = 30

Solving for variable 'r'.

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

Divide each side by '-3'.
r = -10

Simplifying
r = -10

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