r-7=4-2r

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Solution for r-7=4-2r equation:


Simplifying
r + -7 = 4 + -2r

Reorder the terms:
-7 + r = 4 + -2r

Solving
-7 + r = 4 + -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 + r + 2r = 4 + -2r + 2r

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

Combine like terms: -2r + 2r = 0
-7 + 3r = 4 + 0
-7 + 3r = 4

Add '7' to each side of the equation.
-7 + 7 + 3r = 4 + 7

Combine like terms: -7 + 7 = 0
0 + 3r = 4 + 7
3r = 4 + 7

Combine like terms: 4 + 7 = 11
3r = 11

Divide each side by '3'.
r = 3.666666667

Simplifying
r = 3.666666667

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