6. Find the first, fourth, and tenth terms of the arithmetic sequence described by the given rule. A(n)
12 + (n-1)(3)
3,24, 27
0,9,27
12,24, 42
12, 21, 39

Step-by-step explanation:

step-by-step explanation:

step 1: solve one of the equations for one of the variables. let's solve the first equation for y:

step 2: substitute that equation into the other equation, and solve for x.

step 3: substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.