Substitusu y=3x. 2x+7y=46

SEMOGA MEMBANTUUUUUUUUUUUUUUU

Bab Persamaan Linear
Matematika SMP Kelas VIII

y = 3x 

2x + 7y = 46
2x + 7 . 3x = 46
2x + 21x = 46
23x = 46
x = 46/23
x = 2

y = 3x
y = 3 . 2
y = 6

HP = { (2, 6) }