4x + 3y = 17 and 5x - 3y = 1

-5m + 6n = - 8 and - 5m + 8n = 6

2x - 7y = - 9 and 6x + 7y = 57

5p - 4q = 3 and - 5p - 4q = 13

6c + d = 12 and c - d = 2

Equation:4x+3y=17

x=-3/4y+17/4

y=-4/3x+17/3

Equation:5x-3y=1

x=3/5y+1/5

y=5/3x+-1/3

Equation:-5m + 6n = - 8

m=6/5n+8/5

n=5/6m+-4/3

Equation:-5m + 8n = 6

m=8/5n+-6/5

n=5/8m+3/4

Equation:2x - 7y = - 9

x=7/2y+-9/2

y=2/7x+9/7

Equation:6x + 7y = 57

x=-7/6y+19/2

y=-6/7x+57/7

Equation:5p - 4q = 3

p=4/5q+3/5

q=5/4p+-3/4

Equation:-5p - 4q = 13

p=-4/5q+-13/5

q=-5/4p+-13/4

Equation:6c + d = 12

c=-1/6d+2

d=-6c+12

Equation: c - d = 2

c=d+2

d=c-2