Question

Solving each system by using substitution. Tell whether the system has one solution, infinitely many solutions, or no solution. y=2x-1 2x+2y=22

Answer 1

y = 2x - 1
2x + 2y = 22
2x + 2(2x - 1) = 22
2x + 4x - 2 = 22
6x - 2 = 22
6x = 24
x = 4
y = 7
one solution