Question

Solve: c + 20 = 21 - 13 (c - 7)

Answer 1

Answer:

it's answer should be 10

Step-by-step explanation:

c + 20 = 21 - 13c + 91

14c = 120 + 20

14c = 140

c = 10 .

Answer 2

$\sf \Large Solution!!$

c + 20 = 21 - 13(c - 7)

c + 20 = 21 - 13c + 91

c + 20 = 112 - 13c

c + 13c = 112 - 20

14c = 92

c ≈ 6.57