Question

Q3: Check whether the given value in the bracket is a solution of given equation or not: (a) p + 5 = 12 (p = 7) (b) 4 z -3 =13 (z = 0) (c) 4(z -3) + 9 = 13 (z = 4) (d) 3(z+ 7) = 10 + (z + 9) (z = -1)​

Answer 1

Step-by-step explanation:

(a) p+5 = 12. (p=7)

putting the value of p:

7 +5 = 12

12 = 12 ( True)

(b) 4z - 3= 13 ( z = 0)

putting the value of z:

4(0) - 3 = 13

0 - 3 = 13

- 3 = 13. ( False)

(c). 4(z-3) + 9 = 13. (z=4)

putting the value of z:

4(4 - 3) + 9 = 13

4( 1 ) + 9 = 13

4 + 9 = 13

13 = 13. ( True)

(d). 3(z + 7) = 10 + (z + 9). (z= -1)

putting the vale of z:

3( -1 + 7) = 10 + (-1 +9)

3(6) = 10 + (8)

18 = 18. ( True)

Answer 2

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