Question

tolong di bantu dog, soal persamaan linear. pakai cara dan penjelasan.​

Answer 1

1) 2x - 3 = 7

2x = 7+3

2x = 10

x = 10/2

x = 5

2) x + 2 = 10 - x

x + x = 10 - 2

2x = 8

x = 4

a. 3x + 2 = 8

3x = 8 - 2

3x = 6

x = 2

b. x - 5 = 3

x = 3+5

x = 8

c. -2x = 4

x = -2

d. 2x - 3 = x - 3

2x - x = -3+3

x = 0