Find the value of x needed to make the equation true.
8x – 4 = 13x + 6

x = -2

Step-by-step explanation:

First, you need to subtract 8x from both sides:

8x – 4 = 13x + 6

-8x         -8x

-4 = 5x + 6

Then, subtract 6 from both sides:

-4 = 5x + 6

-6         - 6

-10 = 5x

Lastly, divide both sides by 5:

-10 = 5x

-2 = x

3x^3-x^2+6x-9

(sin 42)/31. = sinx)/37

sinx = 37 (sin42)/31

= 37× 0.66/31 = 0.787

x= 51.9

other angle opposite to y = 180-51.9-42

= 180- 93.9 =86.1

so

sin42)/31 = sin 86.1)/y

0.021 = 0.997 /y

y= 0.997/0.021 =47.47