2r+7=r+12

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Solution for 2r+7=r+12 equation:


Simplifying
2r + 7 = r + 12

Reorder the terms:
7 + 2r = r + 12

Reorder the terms:
7 + 2r = 12 + r

Solving
7 + 2r = 12 + 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.
7 + 2r + -1r = 12 + r + -1r

Combine like terms: 2r + -1r = 1r
7 + 1r = 12 + r + -1r

Combine like terms: r + -1r = 0
7 + 1r = 12 + 0
7 + 1r = 12

Add '-7' to each side of the equation.
7 + -7 + 1r = 12 + -7

Combine like terms: 7 + -7 = 0
0 + 1r = 12 + -7
1r = 12 + -7

Combine like terms: 12 + -7 = 5
1r = 5

Divide each side by '1'.
r = 5

Simplifying
r = 5

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