3r-7+4r=0

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Solution for 3r-7+4r=0 equation: 


Simplifying
3r + -7 + 4r = 0

Reorder the terms:
-7 + 3r + 4r = 0

Combine like terms: 3r + 4r = 7r
-7 + 7r = 0

Solving
-7 + 7r = 0

Solving for variable 'r'.

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

Add '7' to each side of the equation.
-7 + 7 + 7r = 0 + 7

Combine like terms: -7 + 7 = 0
0 + 7r = 0 + 7
7r = 0 + 7

Combine like terms: 0 + 7 = 7
7r = 7

Divide each side by '7'.
r = 1

Simplifying
r = 1

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