Show all work to receive credit for every problem. Solve each equation for x.
6 - 7x + 4 -11x = 46

x = -2

Step-by-step explanation:

6 - 7x + 4 -11x = 46

Solve for x:

10 - 18 x = 46

Subtract 10 from both sides:

(10 - 10) - 18 x = 46 - 10

10 - 10 = 0:

-18 x = 46 - 10

46 - 10 = 36:

-18 x = 36

Divide both sides of -18 x = 36 by -18:

(-18 x)/(-18) = 36/(-18)

(-18)/(-18) = 1:

x = 36/(-18)

The gcd of 36 and -18 is 18, so 36/(-18) = (18×2)/(18 (-1)) = 18/18×2/(-1) = 2/(-1):

x = 2/(-1)

Multiply numerator and denominator of 2/(-1) by -1:

 x = -2

99

step-by-step explanation:

answer: cos [   arcsin (3/5) - arccos (1/2) ] =

step-by-step explanation: × = 3/5 = 0.6--> x = 36.87 and x = 180 - 36.87 = 143.13 deg

cos y = 1/2 --> y = +- 60 deg a. cos (x - y) = cos (143.13 - 60) = cos 83,13  

=

0.12

b. cos (36.87 - 60) = cos (-23.23) = 0.92