3r+3=r+7

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


Simplifying
3r + 3 = r + 7

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

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

Solving
3 + 3r = 7 + r

Solving for variable 'r'.

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

Add '-1r' to each side of the equation.
3 + 3r + -1r = 7 + r + -1r

Combine like terms: 3r + -1r = 2r
3 + 2r = 7 + r + -1r

Combine like terms: r + -1r = 0
3 + 2r = 7 + 0
3 + 2r = 7

Add '-3' to each side of the equation.
3 + -3 + 2r = 7 + -3

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

Combine like terms: 7 + -3 = 4
2r = 4

Divide each side by '2'.
r = 2

Simplifying
r = 2

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