-29=20+7r

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Solution for -29=20+7r equation:


Simplifying
-29 = 20 + 7r

Solving
-29 = 20 + 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.
-29 + -7r = 20 + 7r + -7r

Combine like terms: 7r + -7r = 0
-29 + -7r = 20 + 0
-29 + -7r = 20

Add '29' to each side of the equation.
-29 + 29 + -7r = 20 + 29

Combine like terms: -29 + 29 = 0
0 + -7r = 20 + 29
-7r = 20 + 29

Combine like terms: 20 + 29 = 49
-7r = 49

Divide each side by '-7'.
r = -7

Simplifying
r = -7

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