-2=10-7r+2

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Solution for -2=10-7r+2 equation:


Simplifying
-2 = 10 + -7r + 2

Reorder the terms:
-2 = 10 + 2 + -7r

Combine like terms: 10 + 2 = 12
-2 = 12 + -7r

Solving
-2 = 12 + -7r

Solving for variable 'r'.

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

Add '7r' to each side of the equation.
-2 + 7r = 12 + -7r + 7r

Combine like terms: -7r + 7r = 0
-2 + 7r = 12 + 0
-2 + 7r = 12

Add '2' to each side of the equation.
-2 + 2 + 7r = 12 + 2

Combine like terms: -2 + 2 = 0
0 + 7r = 12 + 2
7r = 12 + 2

Combine like terms: 12 + 2 = 14
7r = 14

Divide each side by '7'.
r = 2

Simplifying
r = 2

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