What is the answer to 2a-4(a-5)=10 ?

The answer to 2a-4(a-5)=10 is a=5

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2a-4(a-5)=10

2 a - 4 (a - 5) = 10

a = 5

Solution steps

2 a - 4 (a - 5) = 10

Expand

- 4 (a - 5) : - 4 a + 20

2 a - 4 a + 20 = 10

Add similar elements:

2 a - 4 a = - 2 a

- 2 a + 20 = 10

Move

20

to the right side

- 2 a = - 10

Divide both sides by

- 2

a = 5

x, 3 x + y = - 9

g = - 5 r + 13

x, 5 x - 2 y = - 7

\frac{7 x + 1}{9} = \frac{2 x}{3}

\frac{3}{2} x + 5 = 14