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.
2 | 5(x+5) = 4(y+5) |
1 | 4x+8 = 3y+6 |
2 | 5x+25 = 4y+20 |
1 = 4x+8 = 3y+6 |-8
4x = 3y -2
2 5x+25=4y+20 |-25
5x = 4y-5
2. 2y + y = 2
1. 17x - y = 10
2
2. 2x + y =7
17 = 17 \ 17
2 2
x = 2 in 2
2 * 2 + y = 7 / zf
4 + y = y #-4
y = 3