-150=30-30r

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Solution for -150=30-30r equation:


Simplifying
-150 = 30 + -30r

Solving
-150 = 30 + -30r

Solving for variable 'r'.

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

Add '30r' to each side of the equation.
-150 + 30r = 30 + -30r + 30r

Combine like terms: -30r + 30r = 0
-150 + 30r = 30 + 0
-150 + 30r = 30

Add '150' to each side of the equation.
-150 + 150 + 30r = 30 + 150

Combine like terms: -150 + 150 = 0
0 + 30r = 30 + 150
30r = 30 + 150

Combine like terms: 30 + 150 = 180
30r = 180

Divide each side by '30'.
r = 6

Simplifying
r = 6

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