-3r+-40=-7

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Solution for -3r+-40=-7 equation: 


Simplifying
-3r + -40 = -7

Reorder the terms:
-40 + -3r = -7

Solving
-40 + -3r = -7

Solving for variable 'r'.

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

Add '40' to each side of the equation.
-40 + 40 + -3r = -7 + 40

Combine like terms: -40 + 40 = 0
0 + -3r = -7 + 40
-3r = -7 + 40

Combine like terms: -7 + 40 = 33
-3r = 33

Divide each side by '-3'.
r = -11

Simplifying
r = -11

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