What is the answer to 6a-5(a-2)+9=-11 ?

The answer to 6a-5(a-2)+9=-11 is a=-30

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6a-5(a-2)+9=-11

6 a - 5 (a - 2) + 9 = - 11

a = - 30

Solution steps

6 a - 5 (a - 2) + 9 = - 11

Move

9

to the right side

6 a - 5 (a - 2) = - 20

Expand

- 5 (a - 2) : - 5 a + 10

6 a - 5 a + 10 = - 20

Add similar elements:

6 a - 5 a = a

a + 10 = - 20

Move

10

to the right side

a = - 30

n^{2} - 20 n + 100

90 \cdot \frac{π}{180}

0.5 p + 5 = 0.1 (p + 8) + 0.4 (p + 1)

6 - y = \frac{( y - 2 ) ^{2}}{2}

0 = x^{2} - 3 x + 2