Question

3x+2y=17 dan 2x-3y=-6
selesaikan dengan metode substitusii yah...
Bantu jawab guuyss...
pleaseee... Thanks :)

Answer 1

3x+2y=17
y=0--> 3x+2.0=17
3x=17
x= 17:3 = 5,66/5,7

x=0--> 3.0+2y =17
2y=17
y=17:2 = 8,5

Answer 2

3x = 17 - 2y
x   = 17/3 - 2/3 y

2x - 3y = 6
2(17/3 - 2/3 y) - 3y = 6
34/3 - 4/3 y - 3y = 6 (biar pacahannya ilang dikali 3 semua)
34 - 4y - 9y = 18
- 13y          = -16
y                = 1  3/13

x = 17/3 - 2/3 x 16/13
x = 17/3 - 32/39
x  = 221/39 - 32/39
x  = 189/39
x  = 4 33/39
x  = 4 11/13