1.8r+9=-5.7r-9

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Solution for 1.8r+9=-5.7r-9 equation:


Simplifying
1.8r + 9 = -5.7r + -9

Reorder the terms:
9 + 1.8r = -5.7r + -9

Reorder the terms:
9 + 1.8r = -9 + -5.7r

Solving
9 + 1.8r = -9 + -5.7r

Solving for variable 'r'.

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

Add '5.7r' to each side of the equation.
9 + 1.8r + 5.7r = -9 + -5.7r + 5.7r

Combine like terms: 1.8r + 5.7r = 7.5r
9 + 7.5r = -9 + -5.7r + 5.7r

Combine like terms: -5.7r + 5.7r = 0.0
9 + 7.5r = -9 + 0.0
9 + 7.5r = -9

Add '-9' to each side of the equation.
9 + -9 + 7.5r = -9 + -9

Combine like terms: 9 + -9 = 0
0 + 7.5r = -9 + -9
7.5r = -9 + -9

Combine like terms: -9 + -9 = -18
7.5r = -18

Divide each side by '7.5'.
r = -2.4

Simplifying
r = -2.4

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