im having a hard time solving this following equation... any help is appreiated.. thanks
3X + 5Y = 1
2X - 3Y = 7
There a two possible ways of solving these equations:
1. Rearrangement then substitution
2. Adding the equations (the easier)
3X + 5Y = 1 x 3
2X - 3Y = 7 x 5
9X + 15Y = 3
10X - 15Y = 35
9X + 15Y + 10X - 15Y = 38
19X = 38
X = 2
2(2) - 3Y = 7
4 - 3Y = 7
4 - 7 = 3Y
-3 = 3Y
-1 = Y