Question

Selesaian dari sistem persamaan 3x + 2y - 4=0 dan x - 3y - 5=0 adalah tlng dijawab ya please buat pr bsk

Answer 1

Verified answer

3x+2y-4 = 0
3x+2y = 4 •••(1)

x-3y-5 = 0
x-3y = 5 •••(2)

3x+2y = 4 (x1)
x-3y = 5 (x3)
••••••••••••••••
3x+2y = 4
3x-9y = 15
•••••••( dikurang )
11y = -11
y = -1


x-3y = 5
x-3(-1) = 5
x+3 = 5
x = 2

HP = {2,-1}