make five math multistep equations

1) 3x + 2y = 10; 2x - 3y = 5

2) 4a + 2b = 20; 3a + 5b = 35
3) 2m - 3n = -8; 5m + 4n = 18
4) 6x + 4y = 26; 3x - 2y = 10
5) 7a + 5b = 45; 2a - 3b = 1