Jawab:

Penjelasan dengan langkah-langkah:

lets assume:

1st number = x

2nd number = y

therefore,

(1) x + y = 207

(2) x – y = 11

x = 11 + y

subtitute value of x from 2nd equation to 1st equation:

x + y = 207

11 + y + y = 207

11 + 2y = 207

2y = 207 – 11

2y = 196

y = 196/2

y = 98

so,

x – y = 11

x – 98 = 11

x = 11 + 98

x = 109

prove:

109 + 98 = 207

109 – 98 = 11

so, the greater number is 109!!