Solve for X.
2x/3 + 1 =3

x=3

Explanation:

Combine 2 and x/3.

2x/3+1=3

Move all terms not containing x to the right side of the equation.

2x/3=2

Multiply both sides of the equation by 3/2.

3/2⋅2x/3=3/2⋅2

Simplify both sides of the equation.

x=3

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