Page 65 - Matematika kelas 10

Oleh karena itu, nilai x, y, dan z ditentukan sebagai berikut.

40 1 1 40 1
0 − −2 0 0 2

4.020 120 150 4.020 120 (–8.040 + 0 + 0) – (–12.000 + 0 + 0)
x = =
1 1 1 1 1 (–150 + 0 + 150) – (–300 + 0 + 120)
1 − −2 0 1 2
75 120 150 75 120

–8.040 + 12.000 3.960
= = = 22
300 – 120 180

1 40 1 1 40
1 0 0 1 0
75 4.020 150 75 4.020 (0 + 0 + 6.000) – (0 + 0 + 4.020)
y = =
1 1 1 1 1 180

1 − −2 0 1 2
75 120 150 75 120

6.000 – 4.020 1.980
= = = 11
180 180

1 1 40 1 1
1 − −2 0 1 2

75 120 4.020 75 120 (–6.000 + 0 + 4.020) – (–8.040 + 4.800)
z = =
1 1 1 1 1 180
1 − −2 0 1 2
75 120 150 75 120

–1.980 + 3.240 1.260
= = = 7
180 180

Matematika 63