Question

system has an infinite number of solutions, use set-builder notation to write the solution set. If a system has no solution, state this
m−2n=16,4m+n=1

Answer 1

m=16+2n from equation 1 now plug this equation into equation 2
4(16+2n)+n=1
64+8n+n=1
9n=1-64
9n=-63
n=-7

=>m=16+2n=16+2(-7)=16-14=2