An equation 2x+y=8 has a solution (2a,9). what is the value of a?

a = -1/4

Step-by-step explanation:

Substitute the given solution into the equations

2x + y = 8

2(2a) + (9) = 8

4a + 9 = 8

Rearrange to get a alone

4a = 8 - 9

4a = -1

a = -1/4

2a = 2(-1/4) = -1/2

Solution = (-1/2, 9)

think about it deeply and passionately about this property

i am sorry

for this pair of functions g(x)=x-2 and f(x)=|x| is (g o f)(a)= |a| -2

step-by-step explanation:

g(x)=x-2

f(x)=|x|

(g o f)(a)=?

(g o f)(x)=g(f(x))

(g o f)(x)=g(|x|)

(g o f)(x)=|x|-2

(g o f)(a)=|a|-2