Question

1.) 3b - 8 = 2b + 3
2.) 6b + 7 = 4b - 5
3.) 8a - 4 = 5a + 8
4.) 10b - 10 = -2b + 14

tolong di bantu dong, pakai cara dan penjasan nya. ​

Answer 1

NOMOR 1

• 3b - 8 = 2b + 3
• 3b - 2b = 3 + 8
• b = 11

NOMOR 2

• 6b + 7 = 4b - 5
• 6b - 4b = -5 - 7
• 2b = -12
• b = -12/2
• b = -6

NOMOR 3

• 8a - 4 = 5a + 8
• 8a - 5a = 8 + 4
• 3a = 12
• a = 12/3
• a = 4

NOMOR 4

• 10b - 10 = -2b + 14
• 10b + 2b = 14 + 10
• 12b = 24
• b = 24/12
• b = 2

Answer 2

3b - 8 = 2b + 3
3b - 2b = 3 + 8
5b = 11
b = 11/5
b = 2 1/5
b = 2,2

6b + 7 = 4b - 5
6b - 4b = -5 - 7
2b = -12
b = -12/2
b = -6

8a - 4 = 5a + 8
8a - 5a = 8 + 4
3a = 12
a = 12/3
a = 4

10b - 10 = -2b + 14
10b + 2b = 14 + 10
12b = 24
b = 24/12
b = 2