1. The root of the equation 2y = 5 (7 - y ) is

2. The root of the equation
(2x - 1) + (x - 1) = x + 2 is

3. The root of the equation
13x - 14 = 9x + 10 is

4. The root of the equation
11x - 5 - x + 6 = 2x + 17 is

5. The root of the equation \(\frac{2}{3}\) y = \(\frac{5}{12}\) is

6. The root of the equation 7 (x - 1) = 21 is

7. If two angles are complementary and one angle is 10° greater than the other, then the smaller angle of the two is

8. If two angles are supplementary and one angle is double the other, then the larger angle is

9. Twice a number is as much greater than 30 as the three times of the number less than 60. The number is

10. One number is greater than the other number by 3. The sum of two numbers is 23. The two numbers are