E General section 1. Solve each pair of the following a) y = x-2 b x + y = 4

y=×-21), ×+y=411)

subtitute y into equation 11)

x+(×-2)=4

×+×-2=4

2×=4+2

2×=6

divide both sides by 2

x=3

hope this !

step-by-step explanation:

d = distance between moon and sun, which in this problem is the hypotenuse of a right triangle.  

the distance y is the side opposite to angle x in the right triangle.   use the definition of the sine function from basic trigonometry.

sin(x) = y/d ⇒

d = y/sin(x)