Please
I need help with this Math question.

(2, 5)

Step-by-step explanation:

3x + 2y = 16 ---› Eqn. 1

y = -7x + 19 ---› Eqn. 2

Substitute y = (-7x + 19) into Eqn. 1.

Thus:

3x + 2(-7x + 19) = 16

3x - 14x + 38 = 16

- 11x + 38 = 16

-11x = 16 - 38

-11x = -22

Divide both sides by -11

x = 2

Substitute x = 2 into eqn. 2.

Thus:

y = -7(2) + 19

y = -14 + 19

y = 5

distance covered by pamela in 9 l of fuel = 99km

let us apply unitary method here.

distance covered by pamela in 1 l of fuel =99/9 =11 km

now let us find distance covered by pamela if she has 12 l of fuel.

distance covered in 12 l = distance covered in 1 l of fuel * 12

we know that distance covered by here in 1 l is 11 km.

so distance covered in 12 l of fuel = 11*12 = 132 km.