7r-3-10r-2=7

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Solution for 7r-3-10r-2=7 equation:


Simplifying
7r + -3 + -10r + -2 = 7

Reorder the terms:
-3 + -2 + 7r + -10r = 7

Combine like terms: -3 + -2 = -5
-5 + 7r + -10r = 7

Combine like terms: 7r + -10r = -3r
-5 + -3r = 7

Solving
-5 + -3r = 7

Solving for variable 'r'.

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

Add '5' to each side of the equation.
-5 + 5 + -3r = 7 + 5

Combine like terms: -5 + 5 = 0
0 + -3r = 7 + 5
-3r = 7 + 5

Combine like terms: 7 + 5 = 12
-3r = 12

Divide each side by '-3'.
r = -4

Simplifying
r = -4

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