Metode subditusi 1. X=2y+5 7y=2x-7 tolong pake cara mengerjakannya :-)

X = 2y + 5 …..1)
7y = 2x – 7
7y = 2(2y + 5) – 7
7y = 4y + 10 – 7
3y = 3
y = 1
x = 2y + 5
x = 2 × 1 + 5
x = 2 + 5
x = 7
Himpunan penyelesaian = {(7,1)}
Jadikan jawaban terbaik ya!!

X – 2y = 5
2x – 7y =7

2x – 4y = 10
2x – 7y = 7
metode eliminasi

3y = 3
y = 1

2x -7 = 7
2x = 14
x = 7