Question

7z+13=2z+4 I want this solution and check​

Answer 1

Answer:

z = -9/5

[MARK THE ANSWER AS BRAINLIEST]

Step-by-step explanation:

7z + 13 = 2z + 4

⇒ 7z - 2z = 4 -13

⇒ 5z = -9

⇒ z = -9/5

Check :

⇒ 7 × (-9/5) + 13 =  2 × (-9/5) + 4

⇒ -63/5 +13 = -18/5 + 4

⇒ (-63 + 65) / 5 = (-18 + 20 ) / 5

⇒ -2 / 5 = -2 / 5

Hence Proved.

Answer 2

7z+13=2z+4

7z-2z = 4-13

5z = -9

z= -9/5

z= -1.8

check

7×-1.8 + 13 = 2×-1.8 + 4

-12.6+13 = -3.6 +4

-0.4 = -0.4

here LHS = RHS

hence verified