Answer:
a
Step-by-step explanation:
Answer:(-1,-3)
Step-by-step explanation:Solve for the first variable in one of the equations, then substitute the result into the other equation.
Answer:
85 and -31
step-by-step:
x + y = 54
x - y = 116
solve for x in first equation
x = 54 - y
sub into second equation
54 - y - y = 116
54 - 2y = 116
-2y = 62
y = -31
sub in x equation
x = 54 - (-31)
x = 85
Thank you so much, you too.
