If: x+y = 8 and 2x-y = 5
Then by adding the equations together: 3x = 13 or x = 13/3
By substitution into the original equations: x = 13/3 and y = 11/3
solve system equation using addition method 3x-y=9 2x+y=6
1566 = x
(-1/6) - 2/3 = -0.8333333332
X=1
By including its plus or minus signs
the answer
40
x=1, y=1
solve system equation using addition method 3x-y=9 2x+y=6
k = 129
7
It is: 32.35 minus 10.63 equals 21.72
1566 = x
15x minus 8=minus 180 3x+8=24
Solve this problem -x squared -40x- 80 =0
Solve using the quadratic formula
minus 5