Answer:
Step-by-step explanation:
Let's solve for x.
−3x+2y=−10
Step 1: Add -2y to both sides.
−3x+2y+−2y=−10+−2y
−3x=−2y−10
Step 2: Divide both sides by -3.
−3x /−3 = −2y−10 −3
x= 2 /3 y+ 10 /3
35.5
H, A
Cos=A/H
Cos 65= 15/x
x=15/cos 65
No
Check
-4 = -2(1)
L.H.S
= -2(1)
= -2
is not = R.H.S.