Answer:
a. y = 7x-98
y =-3/5x-2
b. y =-1/3x+4/3
x =-21
Step-by-step explanation:
a. 7x - y = 98
98 - 7x
-y = -7x + 98
divide by -
y = 7x - 98
3x - 5y = 10
10 - 3x
-5y = -3x + 10
divide by -5
y = -3/5x - 2
b. x + 3y = 4
4 - x
3y = -1x + 4
divide by 3
y = -1/3x + 4/3
x = 6- 27
x = -21
