7r+3=3r+9

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Solution for 7r+3=3r+9 equation:


Simplifying
7r + 3 = 3r + 9

Reorder the terms:
3 + 7r = 3r + 9

Reorder the terms:
3 + 7r = 9 + 3r

Solving
3 + 7r = 9 + 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.
3 + 7r + -3r = 9 + 3r + -3r

Combine like terms: 7r + -3r = 4r
3 + 4r = 9 + 3r + -3r

Combine like terms: 3r + -3r = 0
3 + 4r = 9 + 0
3 + 4r = 9

Add '-3' to each side of the equation.
3 + -3 + 4r = 9 + -3

Combine like terms: 3 + -3 = 0
0 + 4r = 9 + -3
4r = 9 + -3

Combine like terms: 9 + -3 = 6
4r = 6

Divide each side by '4'.
r = 1.5

Simplifying
r = 1.5

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