Question

1 .7n + 4 = 4n - 17 =
2.8n + 12 = 10n + 8 =
3.10 - 4n = 15 - 3n=

Answer 1

Verified answer

1. 7n + 4 = 4n - 17
7n - 4n = - 4 - 17
3n = - 21
n = - 21/3
n = 7

2. 8n + 12= 10n + 8
8n - 10n= -12 + 8
2n = -4
n = -4/2
n = -2

3. 10 - 4n = 15 - 3n
-4n + 3n= -10 + 15
-n = -5
n = 5

Maaf kalau salah

Answer 2

1)
7n + 4 = 4n - 17
7n - 4n = -17 - 4
3n = -21
n = -21/3
n = -7

2)
8n + 12 = 10n + 8
8n - 10n = 8 - 12
-2n = -4
n = -4/-2
n = 2

3)
10 - 4n = 15 - 3n
-4n + 3n = 15 - 10
n = -5