What is the answer to 7r+8(r+2)=6r ?

The answer to 7r+8(r+2)=6r is r=-16/9

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7r+8(r+2)=6r

7 r + 8 (r + 2) = 6 r

r = - \frac{16}{9}

Decimal Notation

r = - 1.77777 \dots

Solution steps

7 r + 8 (r + 2) = 6 r

Expand

8 (r + 2) : 8 r + 16

7 r + 8 r + 16 = 6 r

Add similar elements:

7 r + 8 r = 15 r

15 r + 16 = 6 r

Move

16

to the right side

15 r = 6 r - 16

Move

6 r

to the left side

9 r = - 16

Divide both sides by

9

r = - \frac{16}{9}

y, x = 6 y + 7

7 p = 28

- 4 (4 - x) = 5 (- 5 + 4 x)

f = - 2 + 3

\frac{2}{5} (16 - 4 x) = 12 x + 3