Solve using substitution
1. Y - 2 = x
-x = y
2. y = 5x - 2
y = x + 6
3. x = -2 y + 1
x = y - 5
4. y = 7x + 2
y = 7X - 2
5. x = y + 15
y = 50
6. y = x + 4
y = 3x
+591 1.-y + 2 = y
2y = 2
y = 1
2. 5x - 2 = x + 6
4x = 8
x = 2
3. -2y + 1 = y - 5
3y = 6
y = 2
4. UNSOLVABLE
5. x = 50+15
x = 65
6. 3x = x + 4
2x = 4
x = 2
