Find the solution to the system of equations
3x+3y+3z=18
x+3y+3z=10
x-3y-4z=0
a. x=5, y=3, z=3
b. x=4, y=4, z=-2
c. x=-2, y=4, z=4
d. x=5, y=3, z=9

Which expression shows the sum of the polynomials with like terms grouped together

Seymour is twice as old as cassandra. if 16 is added to cassandra’s age and 16 is subtracted from seymour’s age, their ages become equal. what are their present ages? show !

Given: circle o, cd is diameter, chord ab || cd. arc ab = 74°, find arc ca.