-3r+15=(r-2)

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Solution for -3r+15=(r-2) equation:


Simplifying
-3r + 15 = (r + -2)

Reorder the terms:
15 + -3r = (r + -2)

Reorder the terms:
15 + -3r = (-2 + r)

Remove parenthesis around (-2 + r)
15 + -3r = -2 + r

Solving
15 + -3r = -2 + r

Solving for variable 'r'.

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

Add '-1r' to each side of the equation.
15 + -3r + -1r = -2 + r + -1r

Combine like terms: -3r + -1r = -4r
15 + -4r = -2 + r + -1r

Combine like terms: r + -1r = 0
15 + -4r = -2 + 0
15 + -4r = -2

Add '-15' to each side of the equation.
15 + -15 + -4r = -2 + -15

Combine like terms: 15 + -15 = 0
0 + -4r = -2 + -15
-4r = -2 + -15

Combine like terms: -2 + -15 = -17
-4r = -17

Divide each side by '-4'.
r = 4.25

Simplifying
r = 4.25

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