126=-42r

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Solution for 126=-42r equation:


Simplifying
126 = -42r

Solving
126 = -42r

Solving for variable 'r'.

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

Add '42r' to each side of the equation.
126 + 42r = -42r + 42r

Combine like terms: -42r + 42r = 0
126 + 42r = 0

Add '-126' to each side of the equation.
126 + -126 + 42r = 0 + -126

Combine like terms: 126 + -126 = 0
0 + 42r = 0 + -126
42r = 0 + -126

Combine like terms: 0 + -126 = -126
42r = -126

Divide each side by '42'.
r = -3

Simplifying
r = -3

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