7=3+2r

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Solution for 7=3+2r equation:


Simplifying
7 = 3 + 2r

Solving
7 = 3 + 2r

Solving for variable 'r'.

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

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

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

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

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

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

Divide each side by '-2'.
r = 2

Simplifying
r = 2

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