Answer:
x=3
y=4
Step-by-step explanation:
Best method would be ellimination. Add the equations to elliminate y.
x + y = 7
x - y = -1
________
2x = 6
x=3
Substitute value of x into any of the two equations to solve for the value of y.
3 + y =7
y=4
Answer:
x= 3
y= 4
Step-by-step explanation:
x+y=7
x-y= -1
let x = y - 1
substitute the value of x in the first equation
x + y = 7
(y - 1) + y = 7
2y - 1 = 7
2y = 7 + 1
2y = 8
y= 4
substitute the value of y in the first equation
x + y = 7
x + 4 = 7
x = 7 -4
x = 3
