7x + 2y = 4 y = x + 1 solve the system of equations. a,(1/3, 4/3) b,(2/9, 11/9) c, no solution

7x + 2y = 4

Step-by-step explanation:

7x + 2y = 4

y = x + 1

Substitute y = x + 1 into  7x + 2y = 4

7x + 2(x + 1) = 4

7x + 2x + 2 = 4

9x + 2 = 4

9x = 2

 x = 2/9

y = 2/9 + 1

y = 2/9 + 9/9

y = 11/9

Answer

(2/9 , 11/9)

7. d. 64

8. i. 32

9. c. 125

10. j. none of the above

11. d. 81

12. i. 216

13. e. none of the above

14. g. 240

15. e. none of the above

16. g. 32

17.   e. none of the above

-2/