Question

2 X + Y is equals to 15 and 2 X + 2 Y is equals to 8 solve the following in substitution method​

Answer 1

Answer:

x=11

y= -7

Step-by-step explanation:

Hope it helps

Answer 2

Answer:

x=11

y=-7

Explanation:

$2x + y = 15 \\ y = 15 - 2x \\ \\ 2x + 2y = 8 \\ putting \: value \: of \: y \: in \: above \: equation| \: \\ 2x + 2(15 - 2x) = 8 \\ 2x + 30 - 4x = 8 \\ - 2x + 30 = 8 \\ - 2x = 8 - 30 \\ - 2x = - 22 \\ 2x = 22 \\ x = 11 \\ y = 15 - 2x \\ = 15 - 2 \times 11 \\ = 15 - 22 \\ y = - 7$

Hope this helps:)