Question

2x + y = 4
and 2x+2y=6​

Answer 1

answer :- x=1 and y=2

Step-by-step explanation:

$2x + y = 4 \\ y = 4 - 2x \: \: \: \: \: \: - ( eq1)\\ now \: substitute \: y \: in \: 2x + 2y = 6 \\ 2x + 2(4 - 2x) = 6 \\ 2x + 8 - 4x = 6 \\ - 2x = 6 - 8 \\ x = \frac{ - 2}{ - 2} \\ x = 1 \\ \\ now \: substitute \: x = 1in \: eq1 \\ \\ y = 4 - 2(1) \\ y = 2$

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Answer 2

Answer:

2x+y=4 ----equation (1)

2x+2y=6------equation (2)

take equation (1)

y=4-2x---equation (3)

take equation (2)

2x+2(4-2x)=6

2x+8-4x=6

2x-4x=6-8

-2x=-2

x=-2/-2

x=1