Intermediate Algebra
posted by Donna .
If a system has an infinite number of solutions, use set−builder notation to write the solution set. If a system has no solution, state this.
y = x + 2,
3y − 2x = 4

use substitution ...
3y  2x = 4
3(x+2)  2x = 4
x = 2
sub into the first ....