Answer:
x = 2
Step-by-step explanation:
-3x - 6 = 8x + 16
8x - 3x = 16 - 6 (subtract like terms)
5x = 10 (divide by 5)
x = 2
A. -1.3
B. 4.5
C. -5.4
D. 3.1
<span>2x + y = 6
2x + y - 6 = 0
answer is </span>2x + y - 6 = 0
hope that helps
Arcsin x + arcsin 2x = π/3
arcsin 2x = π/3 - arcsin x
sin[arcsin 2x] = sin[π/3 - arcsin x] (remember the left side is like sin(a-b)
2x = sinπ/3 cos(arcsin x)-cosπ/3 sin(arc sinx)
2x = √3/2 . cos(arcsin x) - (1/2)x)
but cos(arcsin x) = √(1-x²)===>2x = √3/2 .√(1-x²) - (1/2)x)
Reduce to same denominator:
(4x) = √3 .√(1-x²) - (x)===>5x = √3 .√(1-x²)
Square both sides==> 25x²=3(1-x²)
28 x² = 3 & x² = 3/28 & x =√(3/28)
