8-3r=-4-15r

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Solution for 8-3r=-4-15r equation:


Simplifying
8 + -3r = -4 + -15r

Solving
8 + -3r = -4 + -15r

Solving for variable 'r'.

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

Add '15r' to each side of the equation.
8 + -3r + 15r = -4 + -15r + 15r

Combine like terms: -3r + 15r = 12r
8 + 12r = -4 + -15r + 15r

Combine like terms: -15r + 15r = 0
8 + 12r = -4 + 0
8 + 12r = -4

Add '-8' to each side of the equation.
8 + -8 + 12r = -4 + -8

Combine like terms: 8 + -8 = 0
0 + 12r = -4 + -8
12r = -4 + -8

Combine like terms: -4 + -8 = -12
12r = -12

Divide each side by '12'.
r = -1

Simplifying
r = -1

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