Answer:
x = 1 , y = 3 thus: A is your Anser
Step-by-step explanation:
Solve the following system:
{2 x + y = 5 | (equation 1)
x + y = 4 | (equation 2)
Subtract 1/2 × (equation 1) from equation 2:
{2 x + y = 5 | (equation 1)
0 x+y/2 = 3/2 | (equation 2)
Multiply equation 2 by 2:
{2 x + y = 5 | (equation 1)
0 x+y = 3 | (equation 2)
Subtract equation 2 from equation 1:
{2 x+0 y = 2 | (equation 1)
0 x+y = 3 | (equation 2)
Divide equation 1 by 2:
{x+0 y = 1 | (equation 1)
0 x+y = 3 | (equation 2)
Collect results:
Answer: {x = 1 , y = 3
Answer:
A. x=1, y=3
Step-by-step explanation:
Hello, I can help you with this.
step 1
use elimination to solve this
Let (1) and (2)
(1)2x+y=5
(2)x+y=4
do (1)-(2) to eliminate y and solve for x
2x+y=5
-(x+y=4)
_______
(2x-x)+(y-y)=5-4
x=1
using x= 1 replace in (1) and isolate y
(1)2x+y=5
x=1
2(1)+y=5
2+y=5 (subtract 2 on each side)
2+y-2=5-2
y=3
so, the solution is
A. x=1, y=3
I really hope it helps, Have a good day.
