Question

Selesaikan persamaan dibawah ini.
A.) 2x + 4 = 8
B.) 2y + 3 = y + 1
C.) x + c = 4, c = 9 ​

Answer 1

2x + 4 = 8

2x = 8 - 4

2x = 4

x = 4/2

x = 2

____________

2y + 3 = y + 1

2y - y = 1 - 3

y = -2

____________

x + c = 4, c = 9

x + 9 = 4

x = 4 - 9

x = -5

Answer 2

Jawaban:

A.) 2x + 4 = 8

• 2x = 8 - 4
• 2x = 4
• x = 4 / 2
• x = 2

B.) 2y + 3 = y + 1

• 2y - y + 3 = 1
• y + 3 = 1
• y = 1 - 3
• y = - 2

C.) x + c = 4

c = 9

• x + 9 = 4
• x = 4 - 9
• x = -5