2r+9=4r-3

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Solution for 2r+9=4r-3 equation:


Simplifying
2r + 9 = 4r + -3

Reorder the terms:
9 + 2r = 4r + -3

Reorder the terms:
9 + 2r = -3 + 4r

Solving
9 + 2r = -3 + 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 + 2r + -4r = -3 + 4r + -4r

Combine like terms: 2r + -4r = -2r
9 + -2r = -3 + 4r + -4r

Combine like terms: 4r + -4r = 0
9 + -2r = -3 + 0
9 + -2r = -3

Add '-9' to each side of the equation.
9 + -9 + -2r = -3 + -9

Combine like terms: 9 + -9 = 0
0 + -2r = -3 + -9
-2r = -3 + -9

Combine like terms: -3 + -9 = -12
-2r = -12

Divide each side by '-2'.
r = 6

Simplifying
r = 6

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