Question

2x+y=6 and 4x+2y=5 solve this equation substitute method​

Answer 1

Answer:

Step-by-step explanation:

$2x+y=6--------(1) \\\\and 4x-2y=5------(2)\\\\From (1) :\\\\y=6-2x\\\\Putting \ this \ value \ in (2 ) \ we\ get\\\\4x-2(6-2x)=5\\\\4x-12+4x=5\\\\\bf x=\frac{17}{8} \\\\From(1)\\\\2*\frac{17}{8} +y=6\\\\y=6-\frac{17}{4} =\frac74$

Answer 2

Answer:

7

Step-by-step explanation:

2(2x+y)=6×2=4x+2y=12

in equation 2 and 3

4x+2y=5

4x+2y=12

=7