\dfrac{10}{3} = \dfrac{x}{\left(-\dfrac{5}{2}\right )} 3
10
​
=
(−
2
5
​
)
x
​ \dfrac{10}{3} = \dfrac{x}{\left(-\dfrac{5}{2}\right )}
3
10
​
=
(−
2
5
​
)
x
​

thats not a system of equations, that is a solution

11.2

step-by-step explanation:

when doing tangent the tangent of the angle is equal to the opposite side from the angle over the adjacent side to the angle.

tan43 = x / 12

move 12 over by multiplying each side by 12

12tan43 = x

x = about 11.2