Answer: (5,2)
Step-by-step explanation:
Given equations: [tex]2x-2y=6......(1)\\4x+4y=28.......(2)[/tex]
Divide 2 on both sides of equation (1) and 4 on the both sides of equation (2), we get
[tex]x-y=3......(3)\\x+y=7.......(4)[/tex]
Adding equation (3) and (4), we get
[tex]2x=10\\\Rightarrow\ x=5[/tex]
Substitute x=5 in equation (4), we get
[tex]y=7-5=2[/tex]
Hence, the solution of the both equations is (5,2).
