7r=3r+40

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Solution for 7r=3r+40 equation: 


Simplifying
7r = 3r + 40

Reorder the terms:
7r = 40 + 3r

Solving
7r = 40 + 3r

Solving for variable 'r'.

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

Add '-3r' to each side of the equation.
7r + -3r = 40 + 3r + -3r

Combine like terms: 7r + -3r = 4r
4r = 40 + 3r + -3r

Combine like terms: 3r + -3r = 0
4r = 40 + 0
4r = 40

Divide each side by '4'.
r = 10

Simplifying
r = 10

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