Question

Solve the following system of equations using substitution.

u = 6 + t

36 = 2t + u


A. t = 10, u = 16
B. t = 10, u = 4
C. t = 14, u = 20
D. t = 16, u = 22

Answer 1

the statement u = 6 + t means we can replace "u" with "6 + t" whenever we see it, so

Answer 2

36 = 2t + u = 2t + 6 + t

know where to go from here?

Answer 3

yes thanks