8 / 3: x = 11 / 7 (방정식 풀기)

8 / 3: x = 11 / 7 (방정식 풀기)


8 / 3: x = 11 / 7
33X = 56
X = 56 / 33



연립 방정식: 5 (x - 1) - 7 (x + 5) = 11 (x + 1)


5 (x - 1) - 7 (x + 5) = 11 (x + 1)
5x - 5 - 7x - 35 = 11x + 11
11x + 7x - 5x = - 5 - 35 - 11
13x = - 51
x = - 51 / 13