What is the answer to 6r-2r-4=18+9r+13 ?

The answer to 6r-2r-4=18+9r+13 is r=-7

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6r-2r-4=18+9r+13

6 r - 2 r - 4 = 18 + 9 r + 13

r = - 7

Solution steps

6 r - 2 r - 4 = 18 + 9 r + 13

Add similar elements:

6 r - 2 r = 4 r

4 r - 4 = 18 + 9 r + 13

Group like terms

4 r - 4 = 9 r + 18 + 13

Add the numbers:

18 + 13 = 31

4 r - 4 = 9 r + 31

Move

4

to the right side

4 r = 9 r + 35

Move

9 r

to the left side

- 5 r = 35

Divide both sides by

- 5

r = - 7

x, y + 14 x = 0

\frac{3 x - 3}{4} = \frac{x}{2}

\frac{1}{4} (12 x - 36) = 5 x + 18

x, z = x y + \frac{x}{y}

638 = (\frac{( t c b - 30 )}{( 85 - 30 )})