9-3r=-4r

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Solution for 9-3r=-4r equation:


Simplifying
9 + -3r = -4r

Solving
9 + -3r = -4r

Solving for variable 'r'.

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

Add '4r' to each side of the equation.
9 + -3r + 4r = -4r + 4r

Combine like terms: -3r + 4r = 1r
9 + 1r = -4r + 4r

Combine like terms: -4r + 4r = 0
9 + 1r = 0

Add '-9' to each side of the equation.
9 + -9 + 1r = 0 + -9

Combine like terms: 9 + -9 = 0
0 + 1r = 0 + -9
1r = 0 + -9

Combine like terms: 0 + -9 = -9
1r = -9

Divide each side by '1'.
r = -9

Simplifying
r = -9

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