Question

Q14. Simplify and find the value when:
x=3, y=-1, z = 2
(i) 7x+4+3x-
(ii) 2x + 3y + 2 + 2x-y-z
(iii) 3x + 2y + x + y
(iv) x+y +3 + 3x + 2y + 5 + 4z​

Answer 1

Answer

(1.) 7(3) + 4 + 3(3)

21 + 4 + 9

34 ans..

(2.) 2(3) + 3(1) +2+2(3)-1-2

6 + 3 + 2+ 6 - 1 -2

17 -1-2

17 -3

14 ans...

(3.) 3(3) + 2(1) + 3 + 1

9 + 2 + 4

15 ans...

(4.) 3 + 1 +3 + 3(3) + 2(1) + 5 + 4(2)

7 + 9 + 2 + 5 + 8

31 ans...

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Answer 2

Answer:

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