18r+1=16r+8-15

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Solution for 18r+1=16r+8-15 equation:


Simplifying
18r + 1 = 16r + 8 + -15

Reorder the terms:
1 + 18r = 16r + 8 + -15

Reorder the terms:
1 + 18r = 8 + -15 + 16r

Combine like terms: 8 + -15 = -7
1 + 18r = -7 + 16r

Solving
1 + 18r = -7 + 16r

Solving for variable 'r'.

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

Add '-16r' to each side of the equation.
1 + 18r + -16r = -7 + 16r + -16r

Combine like terms: 18r + -16r = 2r
1 + 2r = -7 + 16r + -16r

Combine like terms: 16r + -16r = 0
1 + 2r = -7 + 0
1 + 2r = -7

Add '-1' to each side of the equation.
1 + -1 + 2r = -7 + -1

Combine like terms: 1 + -1 = 0
0 + 2r = -7 + -1
2r = -7 + -1

Combine like terms: -7 + -1 = -8
2r = -8

Divide each side by '2'.
r = -4

Simplifying
r = -4

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